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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,
Calhoun County,
Downloadable Data,
Elevation, All tags...
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Franklin County,
IL,
Illinois,
Jefferson County,
Jersey County,
Lincoln County,
MO,
Macoupin County,
Madison County,
Missouri,
Monroe County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Randolph County,
St. Charles County,
St. Clair County,
St. Francois County,
St. Louis County,
St. Louis County,
Ste. Genevieve County,
US,
US,
United States,
United States,
Warren County,
Washington 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,
Adams County,
Brown County,
Calhoun County, All tags...
Cass County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
Greene County,
IL,
Illinois,
Jersey County,
Lincoln County,
MO,
Macoupin County,
Missouri,
Morgan County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Pike County,
Pike County,
Schuyler County,
Scott County,
Shapefile,
Shapefile,
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,
Adams County,
Brown County,
Calhoun County, All tags...
Cass County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Greene County,
IL,
Illinois,
Jersey County,
Lincoln County,
MO,
Macoupin County,
Missouri,
Morgan County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Pike County,
Pike County,
Schuyler County,
Scott 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,
Calhoun County,
Downloadable Data,
Elevation, All tags...
Elevation Terrestrial,
Franklin County,
IL,
Illinois,
Jefferson County,
Jersey County,
Lincoln County,
MO,
Macoupin County,
Madison County,
Missouri,
Monroe County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Randolph County,
Shapefile,
Shapefile,
St. Charles County,
St. Clair County,
St. Francois County,
St. Louis County,
St. Louis County,
Ste. Genevieve County,
US,
US,
United States,
United States,
Warren County,
Washington County,
elevation,
ngda, Fewer tags
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