National Atlas of the United States: GIS: NCSU Libraries This page contains a listing of archived National Atlas data which was cataloged in 2001 by NCSU Libraries. This txt file is linked from http://www.lib.ncsu.edu/gis/natatlas.html. An html version of this file is saved as http://www.lib.ncsu.edu/gis/natatlas_archive.html. The html version is not linked to other pages so it won't be explored by link checker bots. It contains too many dead links that aren't worth the time to fix. In the listings below, "Available on RPP (Novell)" was the old name given to what is now referred to as the Geodata Server. For the most current National Atals GIS data, see http://nationalatlas.gov. JE Jan. 11, 2010 Data Layers and Access The following GIS data sets can be found in the National Atlas and are available via the Libraries RPP Novell server. Note that these data layers can also be downloaded directly from USGS: Abandoned Mine Land Inventory - Coal Mine Related Problems Agriculture Census Airports Amphibian Distribution Average Annual Precipitation Butterflies Breeding Bird Survey Routes of North America Cancer Mortality 1980 Census 1990 Census Cities and Towns Coal Fields of the U.S. Congressional Districts of the United States - 107th Congress Continental Divide County Boundaries 1980 County Boundaries 1990 County Boundaries Crimes Dams Envirofacts Federal and Indian Lands Forest Cover Types Forest Fragmentation Index Map of North America Geology - Calderas Geology - Faults (decorated) Geology - Geologic Units (polygon) Geology - Glacial Limit Lines (decorated) Geology - Impact Structure Locations Geology - Metamorphism Historical North Atlantic Hurricane Tracks - Major Storms with Landfall in the United States Historical North Atlantic Tropical Cyclone Tracks Hydrological Unit Boundaries Invasive Species - Chinese Privet Invasive Species - Chinese Tallow Tree Invasive Species - Common Gorse Invasive Species - Leafy Splurge Invasive Species - Purple Loosestrife Invasive Species - Zebra Mussels Land Cover Characteristics Land Cover Diversity Landslide - Costly Events Landslide - Costly Regional Events Landslide - Overview Map Magnetic Field-Declination Metropolitan Areas Mineral Operations: Agricultural Mineral Operations: Construction Mineral Operations: Ferrous Metal Mines Mineral Operations: Ferrous Metals Processing Plants Mineral Operations: Miscellaneous Industrial Mineral Operations: Nonferrous Metal Mines Mineral Operations: Nonferrous Metal Processing Plants Mineral Operations: Refactory, Abrasive, and Other Industrial Mineral Operations: Sand and Gravel Mineral Operations: Stone, Crushed Mortality Moths NAWQA Surface Water Sampling Sites Nightime Lights of North America Official Protraction Diagrams/Leasing Map Parkways and Scenic Rivers 2000 Presidential Election Results Principal Aquifers Public Land Survey System Railroads Real Time Flow Stations Roads Seismic Events Shaded Relief of North America Significant and Historic Earthquakes States Time Zones Urban Areas Volcanoes Water Features (areas) Water Features (lines) West Nile Virus 2000: Human Cases West Nile Virus 2000: Mosquito Surveillance West Nile Virus 2000: Sentinel Flock Surveillance West Nile Virus 2000: Veterinary Cases West Nile Virus 2000: Wild Bird Cases Wildlife Mortality Abandoned Mine Land Inventory - Coal Mine Related Problems This data set contains 22,143 points for Problem Areas containing public health, safety, public welfare, and environmental problems created by past coal mining. It is a subset of data contained in the Office of Surface Mining (OSM) Abandoned Mine Land Inventory. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: abnminx020 File Size: 13.8 mb Scale: ? Type: point Format: Shapefile Projection: geographic coordinates/decimal degrees Agriculture Census National Agricultural Statistics Service, U.S. Department of Agriculture's 1997 Census data for the United States, presented by county. There are 25 categories data which include information about farms, crops, livestock, values of products, and farm operator characteristics. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: agcensp020 File Size: 14.3 mb Scale: 1:2,000,000 Type: polygon Format: Shapefile Projection: geographic coordinates/decimal degrees Airports This map layer includes the locations of nearly 850 airports in the United States. The information in the map layer was provided by the Federal Aviation Administration of the Department of Transportation and was originally published in the National Transportation Atlas by the Bureau of Transportation Statistics. The atlas is a collection of geospatial databases depicting nationally significant transportation facilities and networks. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: airprtx020 File Size: 0.2 mb Scale: ? Type: point Format: Shapefile Projection: geographic coordinates/decimal degrees Amphibian Distribution, Pre-1950 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amphp5t File Size: 1.8 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Amphibian Distribution, 1950-1959 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amph50t File Size: 1.8 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Amphibian Distribution, 1960-1969 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amph60t File Size: 1.9 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Amphibian Distribution, 1970-1979 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amph70t File Size: 1.9 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Amphibian Distribution, 1980-1989 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amph80t File Size: 2.0 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Amphibian Distribution, 1990-1999 Shows the distribution, by county, for 19 species of U.S. amphibians. See also: U.S. Amphibians Distribution Maps, North American Amphibian Monitoring Program (NAAMP), North American Reporting Center for Amphibian Malformations, FrogWeb: Amphibian Declines & Deformities. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: amph90t File Size: 2.0 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Average Annual Precipitation Average annual precipitation in the contiguous United States for the climatological period 1961-1990. It was created from the Parameter-elevation Regressions on Independent Slopes Model (PRISM) which was developed by the Spatial Climate Analysis Service at Oregon State University. This data set is the product of a partnership between the Natural Resources Conservation Service and the Spatial Climate Analysis Service. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: prism0p020 File Size: 10.0 mb Scale: 1:2,000,000 Type: Polygon Format: Shapefile Projection: geographic coordinates/decimal degrees Breeding Bird Survey Routes of North America This map layer portrays the current routes used for conducting Breeding Bird Surveys in the lower 48 States. This data set was collected using a different roads file from that available through the National Atlas of the United States, so there may be positional differences between the two map layers. The North American Breeding Bird Survey Routes map layer was compiled by USGS Patuxent Wildlife Research Center. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: bbsrtsl020 File Size: 13.7 mb Scale: 1:100,000 Type: line Format: Shapefile Projection: geographic coordinates/decimal degrees Butterflies This data table contains information about the occurrence of butterflies in counties in the United States. Most observations are from the last 30 to 40 years and are cumulative. Therefore, this map layer does not necessarily imply current residence of the species. This butterfly occurrence data table was compiled by the U.S. Geological Survey. Use in conjunction with the counties layer. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: butflyt.dbf File Size: 2.6 mb Scale: n/a Type: table Format: DBF Projection: n/a Cancer Mortality Contains 1970-1994 cancer mortality information for the United States. Most of the information is county based and includes death rates, number of deaths, confidence levels, and expected number of deaths for white males and white females for 20 cancers. The data are from a cancer mapping project in the National Cancer Institute's Division of Cancer Epidemiology and Genetics. See also: Atlas of Cancer Mortality in the United States, 1950-1994. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: cancerp020 File Size: 30.9 mb Scale: 1:2,000,000 Type: Polygon Format: Shapefile Projection: geographic coordinates/decimal degrees 1980 Census This data table contains 1980 population information for ethnic groups, male and female populations, and income in the United States. The information was provided by the U.S. Census Bureau. Use in conjunction with the 1980 counties layer. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: ce1980t.dbf File Size: 0.9 mb Scale: n/a Type: table Format: DBF Projection: n/a 1990 Census This data table contains 1990 population information for ethnic groups, male and female populations, and income in the United States. The information was provided by the U.S. Census Bureau. Use in conjunction with the 1990 counties layer. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: ce1990t.dbf File Size: 0.9 mb Scale: n/a Type: table Format: DBF Projection: n/a Cities and Towns This map layer includes the locations of over 28,000 towns and cities in the United States. These locations were collected from The National Atlas of the United States of America published in 1970. This information was updated and supplemented with additional data from the official repository of American's place names, the Geographic Names Information System. The cities and towns map layer was compiled by the U.S. Geological Survey. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: citiesx020 File Size: 8.8 mb Scale: 1:2,000,000Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Coal Fields of the U.S. Portrays areas that contain significant coal deposits for Alaska and the lower 48 States of United States. The layer contains the name of the coal field or region, the type of coal and if it is minable. The types of coal included are lignite, bituminous, subbituminous, and anthracite. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: coalfdp050 File Size: 5.7 mb Scale: 1:5,000,000Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Congressional Districts of the United States - 107th Congress Congressional Districts of the United States for the 107th Congress. The data set was created by extracting lines from existing National Atlas layers that are coincident with Congressional District boundaries. In areas lacking coincident geometry, lines from 1:100,000 scale Congressional District boundaries published by the U.S. Department of Commerce, Bureau of the Census, Geography Division were generalized and integrated into the data layer. The Congressional Districts of the United States - 107th Congress map layer was compiled by USGS. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: cgd107p020 File Size: 11.7 mb Scale: 1:2,000,000Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Congressional Districts of the United States - 106th Congress Congressional Districts of the United States for the 106th Congress. The data set was created by extracting lines from existing National Atlas layers that are coincident with Congressional District boundaries. In areas lacking coincident geometry, lines from 1:100,000 scale Congressional District boundaries published by the U.S. Department of Commerce, Bureau of the Census, Geography Division were generalized and integrated into the data layer. The Congressional Districts of the United States - 106th Congress map layer was compiled by USGS. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: cgd106p020 File Size: 11.7 mb Scale: 1:2,000,000Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Continental Divide shows the continental divide in the conterminous United States. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: condivl020 File Size: 0.8 mb Scale: 1:5,000,000Type: line Format: shapefile Projection: geographic coordinates/decimal degrees County Boundaries This map layer portrays the county boundaries of the United States. County names and Federal Information Processing Standard (FIPS) codes are two significant pieces of information associated with every county polygon in this map layer. The County Boundaries map layer was compiled by the U.S. Geological Survey from a variety of sources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: countyp020 File Size: 13.3 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees 1980 County Boundaries This map layer portrays the 1980 county boundaries of the United States. County names and Federal Information Processing Standard (FIPS) codes are two significant pieces of information associated with every county polygon in this map layer. The County Boundaries map layer was compiled by the U.S. Geological Survey from a variety of sources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: co1980p020 File Size: 13.3 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees 1990 County Boundaries This map layer portrays the 1990 county boundaries of the United States. County names and Federal Information Processing Standard (FIPS) codes are two significant pieces of information associated with every county polygon in this map layer. The County Boundaries map layer was compiled by the U.S. Geological Survey from a variety of sources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: co1990p020 File Size: 13.5 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Crimes This data set is a compilation of United States crime statistics for 1994-1998, drawn from the Uniform Crime Reporting Program data compiled by the Federal Bureau of Investigations (FBI) and archived at the Inter-university Consortium for Political and Social Research (ICPSR). Data are reported by county and are provided for eight crimes: murder, forcible rape, robbery, aggravated assault, burglary, larceny, motor vehicle theft, and arson. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: crimesp020 File Size: 18.3 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Dams This map layer includes the locations of over 7,700 majors dams in the United States. The information in the map layer was provided by the U.S. Army Corps of Engineers (USACE). The original dam information came from the National Inventory of Dams (NID) which was produced by USACE in cooperation with FEMA's National Dam Safety Program. The full NID contains over 75,000 dams and is used to track information on the country's water control infrastructure. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: dams00x020 File Size: 4.1 mb Scale: 1:2,000,000 Type: point Format: shapefile Projection: geographic coordinates/decimal degrees EPA Envirofacts The Environmental Protection Agency (EPA) created the Envirofacts Warehouse to provide the public with direct access to the wealth of information contained in its databases. The Envirofacts Warehouse allows you to retrieve environmental information from EPA databases on Air, Chemicals, Facility Information, Grants/Funding, Hazardous Waste, Spatial Data, Superfund, Toxic Releases, and Water Permits and Drinking Water. You may retrieve information from several databases at once, or from one database at a time. You may use online queries to retrieve data from these sources and create reports, or you may generate maps of environmental information by selecting from several mapping applications available through EPA's Maps On Demand. This data is not archived locally. Consult the National Atlas Download page for access. Federal and Indian Lands This map layer portrays the federally and Indian administered lands of the United States that have any area equal to or greater than 640 acres. The government agencies that administer these lands include the Bureau of Indian Affairs, the Bureau of Reclamation, the Bureau of Land Management, the Department of Defense, the Forest Service, the Fish and Wildlife Service, the National Park Service, and the Tennessee Valley Authority. This map layer was produced by the U.S. Geological Survey. It does not include linear (long, relatively narrow) features. Linear features are available in a separate map layer that portrays the locations of parkways and scenic rivers. This Federal and Indian Lands map layer also does not include any federally and Indian held land that has an areal extent smaller than 640 acres (though a separate map layer for these lands is in the works). See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: fedlanp020 File Size: 56.8 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Forest Cover Types This data set portrays 25 classes of forest cover types for the United States. Data were derived from Advanced Very High Resolution Radiometer (AVHRR) composite images recorded during the 1991 growing season, with the exception of Puerto Rico, for which Landsat Thematic Mapper (TM) data were used. The Forest Cover Type data was compiled jointly by the U.S. Geological Survey and the USDA Forest Service. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: foresti020l File Size: 75.4 mb Scale: 1:7,500,000 Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Forest Fragmentation Index Map of North America A grid map of North America including the Caribbean and most of Mexico. The data set is an excerpt from a global assessment of forest fragmentation. Each pixel value represents an index of forest fragmentation for the surrounding 81 sq. km. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: forfrgi020l File Size: 73.7 mb Scale: n/a Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Geology - Calderas Outlines of major calderas. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: calderl File Size: 0.02 mb Scale: n/a Type: line Format: Shapefile Projection: Geographic Coordinates Geology - Faults (decorated) Fault lines, with line decorations. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: faultgl File Size: 17.7 mb Scale: n/a Type: line Format: Shapefile Projection: Geographic Coordinates Geology - Faults (undecorated) Fault lines, with line decorations. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: faultl File Size: 0.4 mb Scale: n/a Type: line Format: Shapefile Projection: Geographic Coordinates Geology - Geologic Units (polygon) Geologic units, as polygons. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: geolgyp File Size: 5.0 mb Scale: n/a Type: polygon Format: Shapefile Projection: Geographic Coordinates Geology - Geologic Units (line) Graphic representation of geologic unit text. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: geolgyl File Size: 3.7 mb Scale: n/a Type: polygon Format: Shapefile Projection: Geographic Coordinates Geology - Graphic Representation of Geologic Unit Text Outlines of major calderas. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: geotxtl File Size: 0.25 mb Scale: n/a Type: annotation Format: Shapefile Projection: Geographic Coordinates Geology - Glacial Limit Lines (decorated) Glacial limit lines, with line decorations. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: glacagl File Size: 0.3 mb Scale: n/a Type: line Format: Shapefile Projection: Geographic Coordinates Geology - Glacial Limit Lines (undecorated) Glacial limit lines, without line decorations. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: glacal File Size: 0.1 mb Scale: n/a Type: line Format: Shapefile Projection: Geographic Coordinates Geology - Impact Structure Locations Impact structure locations, as points. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: impactx File Size: 0.01 mb Scale: n/a Type: point Format: Shapefile Projection: Geographic Coordinates Geology - Metamorphism Areas and facies types of metamorphism. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas/geology Filename: metfacp File Size: 0.12 mb Scale: n/a Type: polygon Format: Shapefile Projection: Geographic Coordinates Historical North Atlantic Hurricane Tracks - Major Storms with Landfall in the United States Contains tracks of major hurricanes that made landfall in the United States as category 3 or higher hurricanes. This layer includes major hurricanes from 1851 through 2000. There were no storms in 2000 that were category 3 or higher when they made landfall. The storm tracks were created from observations of storm center locations taken every six hours. From the National Hurricane Center (NHC). See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: hurmjrl020 File Size: 0.9 mb Scale: 1:2,000,000Type: line Format: shapefile Projection: geographic coordinates/decimal degrees Historical North Atlantic Tropical Cyclone Tracks Contains tracks of all North Atlantic, Caribbean, and Gulf of Mexico subtropical depressions and storms, tropical depressions and storms, and all hurricanes from 1851 through 2000. The storm tracks were created from observations of storm center locations taken every six hours. From the National Hurricane Center (NHC). See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: huralll020 File Size: 7.8 mb Scale: 1:2,000,000Type: line Format: shapefile Projection: geographic coordinates/decimal degrees Hydrologic Unit Boundaries This data was compiled by the U.S. Geological Survey and depicts a hydrologic system that divides and subdivides the United States into successively smaller river basin units. These subdivisions, or hydrologic units, are used for collection and organization of hydrologic data. The hydrologic units outlined in this data represent natural and manmade stream-drainage areas. The boundaries and associated hydrologic unit codes were modified from the State Hydrologic Unit Maps (1:500,000-scale) prepared by the USGS in cooperation with the U.S. Water Resources Council. ). See online documentation. See local metadata. For more info see Hydrologic units maps of the Conterminous United States. Polygon data Available on RPP (Novell) Path: /natatlas Filename: hucs00p020 File Size: 20.1 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Line data Available on RPP (Novell) Path: /natatlas Filename: hucs00l020 File Size: 12.9 mb Scale: 1:2,000,000 Type: line Format: shapefile Projection: geographic coordinates/decimal degrees Invasive Species - Chinese Privet Considered an invasive species, Chinese privet is a shrub or small tree that aggressively colonizes open areas in the eastern United States. This data set contains county-level distribution information for Chinese privet (scientific name - Ligustrum sinense) in the U.S. The collection year of the specimen is included. These data come from the U.S. Department of Agriculture's Natural Resources Conservation Service's PLANTS Database. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wdligut File Size: 0.05 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Invasive Species - Chinese Tallow Tree Chinese tallow tree is considered an invasive species which displaces native vegetation in the southern United States. This data set contains county-level distribution information for Chinese tallow tree (scientific name - Triadica sebifera) in the U. S. The collection year of the specimen is included. These data come from the U.S. Department of Agriculture's Natural Resources Conservation Service's PLANTS Database. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wdtriat File Size: 0.02 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Invasive Species - Common Gorse Common gorse is considered an invasive species. By crowding out native vegetation in the western United States it is causing the loss of valuable grassland habitat. This data set contains county-level distribution information for Common Gorse (scientific name - Ulex europaeus) in the U.S. The collection year of the specimen is included. These data come from the U.S. Department of Agriculture's Natural Resources Conservation Service's PLANTS Database. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wdulext File Size: 0.01 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Invasive Species - Leafy Splurge Leafy spurge is considered an invasive species which displaces native vegetation in prairie habitats and fields. This data set contains county-level distribution information for leafy spurge (scientific name - Euphorbia esula) in the United States. The collection year of the specimen is included. These data come from the U.S. Department of Agriculture's Natural Resources Conservation Service's PLANTS Database. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wdeupht File Size: 0.04 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Invasive Species - Purple Loosestrife Purple loosestrife is considered an invasive species. Its displacement of native species in wetlands has led to the loss of suitable habitat for wildlife. This data set contains county-level distribution information for Purple loosestrife (scientific name - Lythrum salicaria) in the United States. The collection year of the specimen is included. These data come from the U.S. Department of Agriculture's Natural Resources Conservation Service's PLANTS Database. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wdlytht File Size: 0.09 mb Scale: n/a Type: DBF Format: DBF Projection: n/a Invasive Species - Zebra Mussels Shows the locations of confirmed zebra mussel sightings in the United States from 1988 to 1998. The sighting reports came from a variety of federal, State, and municipal agencies, public utilities, universities, engineering and private consultant firms, and businesses. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: zmusslx020 File Size: 1.0 mb Scale: 1:100,000 Type: Point Format: Shapefile Projection: geographic coordinates Land Cover Characteristics This image data portrays the land cover characteristics for North America. It was derived from Advanced Very High Resolution Radiometer (AVHRR) data. The data includes the following classes of data: urban and built-up land, cropland and pasture, shrubland, grassland, deciduous and evergreen forest, water, wetlands, and tundra. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: landcvi020l File Size: 72.9 mb Scale: 1:2,000,000 Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Land Cover Diversity The land cover diversity map portrays relative diversity, considering both natural and anthropogenic land cover types. This is a first step towards quantifying biodiversity at landscape-scale levels of biological organization. These data were originally created as part of a global analysis of land cover diversity and pattern based on digital land cover maps derived from remote sensing. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: lcdvrsi020l File Size: 72.9 mb Scale: n/a Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Landslide - Costly Events Locations of 32 landslide events in the United States and Puerto Rico where there was public or private property damage or loss of human life. Landslides are defined in a broad manner, to include most types of gravitational mass movement such as rockfalls, debris flows, and the failure of engineered soil materials. Landslide causes include earthquakes, reservoir draw-downs, and heavy precipitation. Compiled by USGS. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: landslp020 File Size: 0.8 mb Scale: 1:2,000,000 Type: polygon Format: Shapefile Projection: geographic coordinates Landslide - Costly Regional Landslide Events From the USGS National Landslides Hazards Program, contains information on 15 costly regional landslide events in the United States and Puerto Rico where there was public or private property damage or loss of human life. The extents represent the approximate boundaries of extensive landsliding triggered by a single meteorological or seismic event. Landslides are defined in a broad manner, to include most types of gravitational mass movement such as rockfalls, debris flows, and the failure of engineered soil materials. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: landslx020 File Size: 0.02 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Landslide - Overview Map Digital version of U.S. Geological Survey Professional Paper 1183, Landslide Overview Map of the Conterminous United States. This layer delineates areas where large numbers of landslides have occurred and areas which are susceptible to landsliding in the conterminous United States. The purpose of the map is to give the user a general indication of areas that may be susceptible to landsliding. It is not suitable for local planning or site selection. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: lsoverp020 File Size: 4.4 mb Scale: 1:2,000,000 Type: polygon Format: Shapefile Projection: geographic coordinates Magnetic Field-Declination Component Shows isogonic lines (lines of constant declination of the Earth's magnetic field), derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic declination is the angular difference between true north and magnetic north. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: dmfcntl020 File Size: 0.9 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Declination Secular Variation Component shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic declination is the angle between true north and magnetic north (the direction of the magnetic field vector) in the horizontal plane. The change is measured in arc minutes per year. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: dsvcntl020 File Size: 2.4 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Inclination Component Shows isoclinic lines (lines of constant inclination of the Earth's magnetic field), derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic inclination is the angle between the magnetic field vector and the horizontal plane. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: imfcntl020 File Size: 0.15 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Inclination Secular Variation Component Shows lines of equal annual change (secular variation) in the inclination of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic inclination is the angle between the magnetic field vector and the horizontal plane. The change is measured in arc minutes per year. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: isvcntl020 File Size: 0.02 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Total Field Intensity Shows isodynamic lines (lines of equal total intensity of the Earth's magnetic field), derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. The total field intensity is the strength of the field, not divided into its component parts. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: fmfcntl020 File Size: 0.02 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Total Field Intensity Secular Variation Shows lines of equal annual change (secular variation), in the total field intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. The total field intensity is the strength of the field, not divided into its component parts. The change in intensity is measured in nanoTeslas per year. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: fsvcntl020 File Size: 0.5 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Horizontal Intensity Shows lines of equal horizontal intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. Horizontal intensity is the horizontal strength of the magnetic field. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: hmfcntl020 File Size: 0.2 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Horizontal Intensity Secular Variation Shows lines of equal horizontal intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. Horizontal intensity is the horizontal strength of the magnetic field. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: hsvcntl020 File Size: 0.6 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Vertical Intensity Shows lines of equal vertical intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. Vertical intensity is the vertical strength of the magnetic field. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: zmfcntm File Size: 0.26 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Magnetic Field-Vertical Intensity Secular Variation Shows lines of equal annual change (secular variation) in the vertical component of the total field intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference Field (IGRF) for the epoch 1995.0. Magnetic intensity is the strength of the magnetic field, and is described in terms of a horizontal component and a vertical component. The change in intensity is measured in nanoTeslas per year. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: zsvcntl020 File Size: 0.35 mb Scale: 1:2,000,000 Type: line Format: Shapefile Projection: geographic coordinates Metropolitan Areas This map layer contains metropolitan areas the United States. This information was provided by the U.S. Census Bureau. The general concept of a metropolitan area is that of a large population nucleus, together with adjacent communities having a high degree of social and economic integration with that core. Metropolitan areas comprise one or more entire counties, except in New England, where cities and towns are the basic geographic units. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: metroap020 File Size: 2.3 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Agricultural This map layer contains information about 309 agricultural mineral operations. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop1x020 File Size: 0.5 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Construction This map layer contains information about 525 construction mineral operations. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop2x020 File Size: 1.3 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Ferrous Metal Mines This map layer contains information about 35 ferrous metal mines. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop3x020 File Size: 0.07 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Ferrous Metal Processing Plants This map layer contains information about 69 ferrous metal processing plants. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop4x020 File Size: 0.1 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Miscellaneous Industrial This map layer contains information about 358 miscellaneous industrial minerals operations. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop5x020 File Size: 0.8 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: NonFerrous Metal Mines This map layer contains information about 247 nonferrous metal mines. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop6x020 File Size: 0.4 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Nonferrous Metal Processing Plants This map layer contains information about 128 Nonferrous Metal Processing Plants. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop7x020 File Size: 0.2 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Refactory, Abrasive, and Other This map layer contains information about 336 refractory, abrasive, and other industrial mineral operations. The information was collected under the Mineral Resources Program. The Mineral Resources Program is the sole Federal provider of high-quality scientific information, objective resource assessments, and unbiased research results on mineral potential, production, consumption, and environmental behavior. The program provides national minerals information, objective assessments, and high-quality applied research on all aspects of the natural and human-made minerals cycle. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: minop8x020 File Size: 0.6 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Sand and Gravel Includes 3,386 sand and gravel operations operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 1998 with production greater than 30,000 tons and surveyed by the MIT. Additional minerals operations information can be obtained from the USGS Minerals Information web page. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: sndgrvx020 File Size: 1.1 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Minerals Operations: Stone, Crushed Includes 2,691 crushed stone operations in the United States. These data were obtained from information reported voluntarily to the USGS by the aggregate producing companies. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey, and the operations are those considered active in 1998 with production greater than 30,000 tons and surveyed by the MIT. Additional minerals operations information can be obtained from the USGS Minerals Information web page. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: crstonem File Size: 0.8 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Mortality This map layer contains mortality information for eleven leading causes of death, eight subset causes, and all causes combined for United States Health Service Areas. The information was provided by the National Center for Health Statistics and was originally published in the Atlas of United States Mortality. The age-adjusted mortality rates include rates by sex and race (white and black). See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: mortalp020 File Size: 19.5 mb Scale: ? Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Moths This data table contains information about the occurrence of moths in counties in the United States. Most observations are from the last 30 to 40 years and are cumulative. Therefore, this map layer does not necessarily imply current residence of the species. This moth occurrence data table was compiled by the U.S. Geological Survey. Use in conjunction with the counties layer. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: moths0t.dbf File Size: 1.2 mb Scale: n/a Type: table Format: DBF Projection: n/a NAWQA Surface-Water Sampling Sites This data set shows 1,044 surface-water sampling sites used by the 1991 and 1994 National Water-Quality Assessment (NAWQA) study units. In 1991, the U.S. Congress appropriated funds for the U.S. Geological Survey to begin the NAWQA Program. The goals of the NAWQA program are to describe the status and trends in the quality of the Nation's ground- and surface-water resources and to provide a sound understanding of the natural and human factors that affect the quality of these resources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: sw9194x020.dbf File Size: 0.2 mb Scale: n/a Type: point Format: shapefile Projection: geographic coordinates NighttimeLights of North America shows nighttime lights in North America. The map layer was derived from cloud-free portions of images taken during 231 orbits of a satellite in 1996 and 1997. This Defense Department satellite has a unique ability to detect low levels of visible radiance at night. It can detect lights from cities, towns, industrial sites, gas flares, and temporary events such as fires and clouds lit by lightning or moonlight. The majority of the detected features are lights from cities and towns. The data were provided by the National Geophysical Data Center. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: nitelti020l.dbf File Size: 124 mb Scale: n/a Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Official Protraction Diagrams/Leasing Map From the Minerals Management Service, shows Official Protraction Diagram (OPD) and leasing map boundaries covering areas of the Outer Continental Shelf within Federal jurisdiction. The boundaries are used to support Federal land ownership and mineral resource management. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: opdlm0p020 File Size: 0.012 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Parkways and Scenic Rivers This map layer portrays the locations of federally administered parkways and wild and scenic rivers. This map layer was produced by the U.S. Geological Survey. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: fedlanl020 File Size: 0.6 mb Scale: 1:2,000,000 Type: line Format: shapefile Projection: geographic coordinates/decimal degrees 2000 Presidential Election Results This map layer shows elections results for the 2000 Presidential general election at the county level for 49 States and at the elections district level for Alaska. It includes the popular vote count and the percentage of the total votes cast. Results are reported for the Democratic party, the Republican party, and all other political parties. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: elt2000t File Size: 0.01 mb Scale: n/a Type: tabular Format: DBF Projection: geographic coordinates/decimal degrees Principal Aquifers This map layer shows the distribution of the principal aquifers that supply ground water to the conterminous United States (commonly called the "lower 48 states"). The aquifer that is shown in each geographic area is generally the uppermost principal aquifer for the area. Each principal aquifer is classified as one of six types of permeable geologic material: unconsolidated deposits of sand and gravel, semiconsolidated sand, sandstone, carbonate rocks, interbedded sandstone and carbonate rocks, and basalt and other types of volcanic rock. Glacial deposits that contain numerous productive aquifers and major alluvial aquifers along main watercourses are not shown. The principal aquifers map layer was compiled by the U.S. Geological Survey. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: aquifrp025 File Size: 10.6 mb Scale: 1:2,500,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Public Land Survey System This map layer portrays the boundaries of the Public Land Survey System of the United States. The information in the map layer was compiled by the U.S. Geological Survey from a variety of sources. The information does appear visible in the browser until the viewer zooms into a scale of larger than 1:4,500,000. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: plss00p020 File Size: 78 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Railroads This map layer includes railroads in the United States. The Railroads map layer was compiled by the U.S. Geological Survey. This map layer is being revised to include more descriptive information about its linear railroad features. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: railroadl020 File Size: 5.8 mb Scale: 1:2,000,000 Type: line Format: shapefile Projection: geographic coordinates/decimal degrees Realtime Streamflow Stations Roads This map layer includes major roads in the United States. The Roads map layer was compiled by the U.S. Geological Survey. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: roadtrl020 File Size: 31.2 mb Scale: 1:2,000,000 Type: line Format: shapefile Projection: geographic coordinates/decimal degrees Seismic Events This map layer includes a selection of seismic events above 4.0 magnitude in and near the United States for the years 1973-1998. The Seismic Events map layer was compiled by the U.S. Geological Survey from a database maintained by its National Earthquake Information Center. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: quakesx020 File Size: 2.2 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Shaded Relief Map of North America This map layer shows the shaded relief throughout North America. The image data included in this map layer is a portrayal of the terrain and is intended for visual purposes only. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: shdrlfi0201 File Size: 41.2 mb Scale: n/a Type: image Format: TIFF Projection: Lambert Azimuthal Equal Area Significant and Historic Earthquakes This map layer shows the locations and attributes of significant, historic earthquakes in the U.S. and in adjacent Canada and Mexico between the years of 1568 - 1996 . Many of the earthquakes contained within this layer caused deaths, property damage, geological effects, or were otherwise experienced by populations in the 48 conterminous United States, Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. The Significant Earthquakes map layer was compiled by the U.S. Geological Survey and extracted in early 1997 from the online data archive of the National Earthquake Information Center. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: quksigx020 File Size: 0.49 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees States This map layer portrays the state boundaries of the United States. It was compiled by the U.S. Geological Survey. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: statesp020 File Size: 6.8 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Time Zone This data set portrays the seven time zones for the United States, Puerto Rico, and the Virgin Islands. Information on Greenwich Mean Time offset and areas in the U.S. where daylight savings time is observed is also included. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: timeznp020 File Size: 3.9 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Urban Areas This map layer includes the outlines of major urban areas in the United States. The Urban Areas map layer was compiled by the U.S. Geological Survey and is derived from the Digital Chart of the World. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: urbanap020 File Size: 2.9 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Volcanoes This map layer shows the locations of volcanoes throughout North America thought to be active in the last 10,000 years. The data included in this map layer is a subset of data available on the World Wide Web from the Global Volcanism Program, National Museum of Natural History, Smithsonian Institution. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: volcanx020 File Size: 0.1 mb Scale: ? Type: point Format: shapefile Projection: geographic coordinates/decimal degrees Water Features (areas) This map layer portrays the waterbodies of the United States that can be represented at a map scale of 1:2,000,000 (one inch on a map at that scale would equal about 31.6 miles on the land surface). Some small ponds, lakes, and reservoirs cannot be portrayed at this scale. All waterbodies for which official geographic names were available have been associated. The Water Features/Waterbodies map layer was compiled by the U.S. Geological Survey from a variety of sources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: hydrogp020 File Size: 47.5 mb Scale: 1:2,000,000 Type: polygon Format: shapefile Projection: geographic coordinates/decimal degrees Water Features (lines) This map layer portrays the streams of the United States that can be represented at a map scale of 1:2,000,000 (one inch on a map at that scale would equal about 31.6 miles on the land surface). Some small streams cannot be portrayed at this scale. All stream segments for which official geographic names were available have been associated. The Water Features/Streams map layer was compiled by the U.S. Geological Survey from a variety of sources. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: hydrogl020 File Size: 68.0 mb Scale: 1:2,000,000 Type: line Format: shapefile Projection: geographic coordinates/decimal degrees West Nile Virus 2000: Human Cases Includes the number of WNV human cases found within the surveillance area in the eastern United States, between January 1, 2000 and December 31, 2000 and the total number of human samples submitted for testing. From the Centers for Disease Control and Prevention. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wnvhumt, wnvhumdt File Size: 0.6 mb Scale: n/a Type: table Format: DBF Projection: n/a West Nile Virus 2000: Mosquito Surveillance Includes whether WNV mosquito cases were found within the surveillance area in the eastern United States, between January 1, 2000 and December 31, 2000. From the Centers for Disease Control and Prevention. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wnvmost File Size: 0.3 mb Scale: n/a Type: table Format: DBF Projection: n/a West Nile Virus 2000: Sentinel Flock Surveillance Includes whether WNV sentinel chicken cases were found within the surveillance area in the eastern United States, between January 1, 2000 and December 31, 2000. From the Centers for Disease Control and Prevention. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wnvchkt File Size: 0.3 mb Scale: n/a Type: table Format: DBF Projection: n/a West Nile Virus 2000: Veterinary Cases Includes the number of WNV veterinary cases found within the surveillance area in the eastern United States, between January 1, 2000 and December 31, 2000 and the total number of veterinary samples submitted for testing. From the Centers for Disease Control and Prevention. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wnvvett File Size: 0.3 mb Scale: n/a Type: table Format: DBF Projection: n/a West Nile Virus 2000: Wild Bird Cases Includes the number of WNV wild bird cases found within the surveillance area in the eastern United States, between January 1, 2000 and December 31, 2000 and the total number of wild bird samples submitted for testing. From the Centers for Disease Control and Prevention. See online documentation. See local metadata. Available on RPP (Novell) Path: /natatlas Filename: wnvavit, wnvaoot, wnvacrt File Size: 0.3 mb Scale: n/a Type: table Format: DBF Projection: n/a Wildlife Mortality contains information about the frequency of wildlife mortality events caused by four different types of agents (avian botulism, avian cholera, avian lead poisoning, and wildlife organophosphate/carbamate poisoning) by county throughout the United States. The data was extracted from a database maintained by U.S. Geological Survey National Wildlife Health Center's (NWHC) and includes information for over 25 years of epidemics in wildlife. See online documentation. See local metadata. Frequency Data Available on RPP (Novell) Path: /natatlas Filename: wlmtfrt File Size: 0.36 mb Scale: n/a Type: table Format: shapefile Projection: n/a Botulism Available on RPP (Novell) Path: /natatlas Filename: wlbotut File Size: 0.15 mb Scale: n/a Type: table Format: shapefile Projection: n/a Cholera Available on RPP (Novell) Path: /natatlas Filename: wlcholt File Size: 0.1 mb Scale: n/a Type: table Format: shapefile Projection: n/a Lead Poisoning Available on RPP (Novell) Path: /natatlas Filename: wlleadt File Size: 0.04 mb Scale: n/a Type: table Format: shapefile Projection: n/a Lead Poisoning Available on RPP (Novell) Path: /natatlas Filename: wllopcat File Size: 0.06 mb Scale: n/a Type: table Format: shapefile Projection: n/a