This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was created by extracting Federal land features from the October 2003 National Atlas map layer "Federal Lands and Indian Reservations of the United States," and was then updated from additional sources. Only areas of 640 acres or more are included. There may be private inholdings within the boundaries of Federal lands in this map layer.
These data are intended to display lands owned or administered by the Federal government, for use in geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. For use with the GeoStac Database, this data set was compiled in order to simplify pesticide risk assemenet and provide a common data set for all stakeholders.
The original source data set, available at http://www.nationalatlas.gov/mld/fedlanp.html, provides additional details as to the compilation process performed by National Atlas of the US.
ground condition
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data.
897-B Harrison Street, S.E.
MS 561
The United States Federal Lands boundaries were compiled by The National Atlas of the United States of America.
Not Available.
Using ESRI's Arc/INFO GIS software, the map layer was checked for label errors, dangling nodes, and intersections. Polygon topology was built for the map layer using the BUILD command.
This map layer includes federal land polygon features for all 50 of the United States, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands. The minimum map resolution is 640 acres or one square mile. Generally, features under this size are not shown. There may be private inholdings within the boundaries of Federal lands in this map layer.
Not Available.
http://www.nationalatlas.gov/
Converted source Federal Lands boundaries data, available at http://www.nationalatlas.gov/atlasftp.html#fedlanp, from Shapefile to Geodatabase Feature Class.
Projected Federal Lands of USA Geodatase Feature Class to map projection of NAD 83 Albers Equal Area.
Imporated and edited source metadata, which is available at http://www.nationalatlas.gov/mld/fedlanp.html.
Internal feature number.
ESRI
Feature geometry.
ESRI
Length of feature in internal units.
ESRI
The primary or only type of Federal land and the owning agency. Where an area represents multiple Federal land types, this attribute describes the smaller or 'contained' land.
National Atlas of the United States
The secondary type of Federal land and the owning agency. Where an area represents multiple Federal land types, this attribute, in general, describes land that surrounds or 'contains' the land referenced in Feature1. Feature2 may also be coded as 'Open Water' if a part of the Federal property referenced in Feature1 includes water.
National Atlas of the United States
The tertiary type of Federal land and the owning agency. Where an area represents multiple Federal land types, this attribute, in general, describes land that surrounds or 'contains' the land referenced in Feature2. Feature3 may also be coded as 'Open Water' if a part of the Federal property referenced in Feature2 includes water.
National Atlas of the United States
A code for the owning or administering agency.
National Atlas of the United States
WWW Web Address
National Atlas of the United States
The name associated with Feature1.
National Atlas of the United States
The name associated with Feature2.
National Atlas of the United States
The name associated with Feature3.
National Atlas of the United States
The two-character State code for the State in which the Federal land is located.
National Atlas of the United States
Area of feature in internal units squared.
ESRI
National Atlas of the United States, The Federal Lands of the United States map layer, available at http://www.nationalatlas.gov/mld/fedlanp.html.
1500 Research Parkway, Suite B223
None.
Data can be downloaded from www.geostac.org with a registered user ID and password provided by the Spatial Sciences Laboratory.
Data can be downloaded from www.geostac.org with a registered user ID and password provided by the Spatial Sciences Laboratory.
897-B Harrison Street, S.E.
MS 561