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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.
Tags: 1 x 1 degree,
1 x 1 degree,
Bond County,
Cass County,
Christian County, All tags...
Downloadable Data,
Elevation,
Elevation Terrestrial,
Fayette County,
FileGDB 10.1,
FileGDB 10.1,
IL,
Illinois,
Logan County,
Macon County,
Macoupin County,
Menard County,
Montgomery County,
Morgan County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Sangamon County,
Shelby County,
US,
US,
United States,
United States,
elevation,
ngda, Fewer tags
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.
Tags: 1 x 1 degree,
1 x 1 degree,
Bond County,
Cass County,
Christian County, All tags...
Downloadable Data,
Elevation,
Elevation Terrestrial,
Fayette County,
IL,
Illinois,
Logan County,
Macon County,
Macoupin County,
Menard County,
Montgomery County,
Morgan County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Sangamon County,
Shapefile,
Shapefile,
Shelby County,
US,
US,
United States,
United States,
elevation,
ngda, Fewer tags
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.
Tags: 1 x 1 degree,
1 x 1 degree,
Cass County,
De Witt County,
Downloadable Data, All tags...
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Fulton County,
IL,
Illinois,
Knox County,
LaSalle County,
Logan County,
Macon County,
Marshall County,
Mason County,
McLean County,
Menard County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Peoria County,
Stark County,
Tazewell County,
US,
US,
United States,
United States,
Woodford County,
elevation,
ngda, Fewer tags
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.
Tags: 1 x 1 degree,
1 x 1 degree,
Cass County,
De Witt County,
Downloadable Data, All tags...
Elevation,
Elevation Terrestrial,
Fulton County,
IL,
Illinois,
Knox County,
LaSalle County,
Logan County,
Macon County,
Marshall County,
Mason County,
McLean County,
Menard County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Peoria County,
Shapefile,
Shapefile,
Stark County,
Tazewell County,
US,
US,
United States,
United States,
Woodford County,
elevation,
ngda, Fewer tags
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