The NC Center for Geographic Information and Analysis, using US Geological Survey maps, developed the GIS data set, Federal Land Ownership, to delineate the boundaries of land in North Carolina that is owned and managed by the US Government. This file is updated as changes occur.
These data were created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
The portion of the Cape Hatteras National Seashore which lies on Roanoke Island was digitized from 1:24,000-scale USGS quads, which had the boundary outlined by the Refuge manager. >system filename: flomod file size = 3.13 mb > >8.) filename: flomod0306 The March 28, 2006 updates to this layer >consist of boundary edits from Federal Managed Areas (DENR, Division >of Parks and Recreation) data. > >Revisions and updates to this layer include: >7.) filename: flomod403 The April 30, 2003 updates to this layer >consist of boundary edits from Federal Managed Areas (DENR, Division >of Parks and Recreation) data. > >6.) filename: flo600 The June 19, 2000 update to this layer >consisted of adding .pat attribute data that was inadvertently >not added with the May 17, 1995 boundary updates. Also, an acres >item was added to the .pat, and the acres were calculated for >each polygon. > >5.) filename: flo1298 The December 1998 update to this layer >consisted of projecting the data from NAD27 datum, State Plane >projection, units of measure feet TO: NAD83 DATUM, State Plane >PROJECTION, UNITS OF MEASURE METERS. This was done to comply >with the NC Geographic Information Coordinating Council's >"Statement of Direction for North Carolina Corporate Geographic >Database Horizontal Reference, Datum and Unit of Measure". >This reprojecting was done in various ways depending on the data >type and content. Vector data was projected using the 'project' >command in ESRI's Arc software and topology was cleaned and >built based on coverage needs. Raster data was projected using >ESRI's Grid module and various steps as applicable. > >4.) filename: flo196 The January 23,1996 update consisted of >changing a label point in a polygon that was null to "Great Smoky >Mountains National Park". This edit took place in Swain County. >PRIOR TO THE 1/23/96 VERSION, THIS LAYER WAS NAME NC.FLO > >3.) filename: flo595 (previously called nc.flo595) >The May 17, 1995 update consisted of several polygonal additions >from three US Fish and Wildlife base maps. The changes occurred >in the Roanoke River National Wildlife Refuge and the Currituck >National Wildlife Refuge. > >2.) filename: flo1193 (previously named nc.flo1193) >The November, 1993 update consisted of >shifting the 1:250,000-scale federal land data to integrate it >with 1:100,000-scale county boundaries. This coverage now >corresponds to the USGS 1:100,000-scale county boundary files. > >1.) filename: flo88 (previously called nc.flo88) >In February,1993, the coverage was changed from nc.usfp to >nc.flo. The 1988 update consisted of adding the Alligator >River Wildlife Refuge boundaries from the Department of >Transportation Highway maps. No previous versions were archived.
Data creation and revision dates
Acknowledgement of products derived form this data set should cite the following: The source of the Federal Land Ownership data is the North Carolina Corporate Geographic Database. Earlier versions of this data set may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.
301 North Wilmington Street, Suite 700
Phone and electronic mail preferred
>US Dept. of the Interior >US Fish and Wildlife Service >Earth Science Information Center >507 National Center >Reston, VA 22092 >1-800-USA-MAPS > >US Dept. of the Interior >US Geological Survey >Earth Science Information Center >507 National Center >Reston, VA 22092 >1-800-USA-MAPS > >NCCGIA Acting Director, Timothy R. Johnson >Database Administration, Zsolt Nagy >Database Manager, David Giordano >Project Manager, Cheryl Pearce >North Carolina Center for Geographic Information and Analysis >Department of Environment and Natural Resources >301 North Wilmington Street, Suite 700 >Raleigh, NC 27699-0322
The US Geological Survey delineated the boundaries on 1:250,000-, 1:100,000-, and 1:24,000-scale USGS topographic maps. NCCGIA digitized these boundaries and attributed them with codes supplied by the US Fish and Wildlife Service, including: controlling US land management agency, and FIPS. The digital files were plotted and overlayed to the originals and linework and label corrections were made.
Using ESRI's ARC/INFO GIS software, the dataset was built for arc and polygon topology using the "build" command. The data set was then cleaned with a fuzzy tolerance of (1 foot). Topo- logy has not been edited since the last build or clean.
These data represent the locations and identities of lands in North Carolina, which are owned and managed by the US Govern- ment as mapped by the US Geological Survey and the U.S. Fish and Wildlife Service.
Federal land boundaries were marked on 1:250,000-, 1:100,000-, or 1:24,000-scale maps, all of which meet National Map Accuracy Standards, using a best estimate with reference to surrounding features. Boundaries drawn were digitized and check plots used to ensure correct boundary location, within a line width.
Boundaries of federally-owned lands
Paper maps used to delineate the boundaries of federally-owned lands
Paper maps used to delineate the boundaries of federally-owned lands
Paper maps used to delineate the boundaries of federally-owned lands
The boundaries of the federally-owned lands in North Carolina were delineated by cartographers on USGS 1:250,000-, 1:100,000-, or 1:24,000-scale topographic maps. The linework was digitized by NCCGIA then it was checked by light table review. Any necessary corrections were made and new check plots were run. Post processing involved edgematching and mapjoining across map borders to create the final statewide data set. USFS suplies CGIA with updates as they occur.
301 North Wilmington Street, Suite 700
Phone and electronic mail preferred
Dataset copied.
Internal feature number.
ESRI
Total perimeter in coverage units
Software computed
Acres per polygon
Software computed
Controlling US Land Management Agency name
US Geological Survey
Internal feature number.
ESRI
Feature geometry.
ESRI
Feature geometry.
ESRI
From-node identifier of linear feature
Software computed
To-node identifier of linear feature
Software computed
Internal number of poly to left of arc
Software computed
Internal number of poly to right of arc
Software computed
Length of arc in coverage units
Software computed
Internal feature number
Software computed
Polygon internal identification number
User defined
A polygon coverage depicting Federally-owned lands in North Carolina. The polygon attribute table (PAT) has attribute data including total area in coverage units (square meters), total perimeter (linear meters), polygon internal identification number, polygon user identification number, a code for the Federal agency that manages the land, the name of the US Land Management agency, the name of the US Land Management Agency, acres, the FIPS county code, and the county name. >FLO.PAT Polygon Attribute Table >COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION >1 AREA 4 12 F 3 Total area in meters >5 PERIMETER 4 12 F 3 Total perimeter in meters >9 FLO# 4 5 B - Poly internal id number >13 FLO-ID 4 5 B - Poly user id number >17 AGENCY# 4 5 B - US Federal Dept. code >21 AGENCY 26 26 C - Controlling US Land Management > Agency name >47 LMA-SITE 45 45 C - US Land Management Agency site name >92 ACRES 4 12 F 3 Acres >96 CO# 4 7 B - County FIPS code >100 CO-NAME 15 15 C - County Name >FLO.AAT Arc Attribute Table >COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION >1 FNODE# 4 5 B - From-node id of linear feature >5 TNODE# 4 5 B - To-node id of linear feature >9 LPOLY# 4 5 B - Left-side polygon id of linear > feature >13 RPOLY# 4 5 B - Right-side polygon id of linear > feature >17 LENGTH 4 12 F 3 Length of linear feature in meters >21 FLO# 4 5 B - Internal id number >25 FLO-ID 4 5 B - Internal id number
None
301 North Wilmington Street, Suite 700
Phone and electronic mail preferred For current price information use a web browser: COST INFORMATION - http://www.cgia.state.nc.us/cost.html
NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.
Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.
301 North Wilmington Street, Suite 700
Phone and electronic mail preferred