Filters: Tags: slope (X) > partyWithName: U.S. Geological Survey, National Geospatial Technical Operations Center (X) > Types: Citation (X)
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This data represents the map extent for current and historical USGS topographic maps for the United States and Territories, including 1 X 2 Degree, 1 X 1 Degree, 30 X 60 Minute, 15 X 15 Minute, 7.5 X 7.5 Minute, and 3.75 X 3.75 Minute. The grid was generated using ESRI ArcInfo GIS software.
These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation
The geospatial data of this layer is comprised of elevation contours.
Types: Citation;
Tags: 1 x 1 degree,
Downloadable Data,
EarthCover,
Elevation,
Imagery and Base Maps,
USGS National Boundary Dataset (NBD) in North Dakota State or Territory (published 20240215) FileGDB
Geospatial data is comprised of government boundaries.
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