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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,
Callaway County,
Crawford County,
Downloadable Data, All tags...
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Franklin County,
Gasconade County,
Lincoln County,
MO,
Maries County,
Missouri,
Montgomery County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Osage County,
Phelps 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,
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,
Cass County, All tags...
Des Moines County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
Fulton County,
Hancock County,
Henderson County,
IA,
IL,
Illinois,
Iowa,
Knox County,
Mason County,
McDonough County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Schuyler County,
Shapefile,
Shapefile,
US,
US,
United States,
United States,
Warren 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,
Cass County, All tags...
Des Moines County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Fulton County,
Hancock County,
Henderson County,
IA,
IL,
Illinois,
Iowa,
Knox County,
Mason County,
McDonough County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Schuyler County,
US,
US,
United States,
United States,
Warren County,
elevation,
ngda, Fewer tags
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Addison County,
Administrative watershed units,
Administrative watershed units,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Bennington County,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Coastline,
Connector,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Estuary,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
HU-8 Subbasin,
HU-8 Subbasin,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU6,
HU8,
HU8_04150401,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Levee,
Line,
Lock Chamber,
Marsh,
NY,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New York,
Nonearthen Shore,
Orthoimage,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rutland County,
Sea/Ocean,
Shapefile,
Shapefile,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Swamp,
Topographic,
Tunnel,
US,
US,
Underground Conduit,
United States,
United States,
VT,
Vermont,
WBD,
WBD,
Wall,
Warren County,
Wash,
Washington County,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers,
stream,
surface water systems, 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,
Aiken County,
Burke County,
Columbia County, All tags...
Downloadable Data,
Edgefield County,
Elbert County,
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
GA,
Georgia,
Glascock County,
Greene County,
Greenwood County,
Hancock County,
Jefferson County,
Lincoln County,
McCormick County,
McDuffie County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Oglethorpe County,
Richmond County,
SC,
Saluda County,
South Carolina,
Taliaferro County,
US,
US,
United States,
United States,
Warren County,
Washington County,
Wilkes 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,
Callaway County,
Crawford County,
Downloadable Data, All tags...
Elevation,
Elevation Terrestrial,
Franklin County,
Gasconade County,
Lincoln County,
MO,
Maries County,
Missouri,
Montgomery County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Osage County,
Phelps County,
Shapefile,
Shapefile,
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,
Boone County,
Clarke County,
Dallas County, All tags...
Downloadable Data,
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
IA,
Iowa,
Jasper County,
Lucas County,
Madison County,
Marion County,
Marshall County,
Monroe County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Polk County,
Story County,
US,
US,
United States,
United States,
Warren County,
elevation,
ngda, Fewer tags
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Addison County,
Administrative watershed units,
Administrative watershed units,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Bennington County,
Boundaries,
Boundary,
Bridge,
Caledonia County,
Canal/Ditch,
Chittenden County,
Clinton County,
Coastline,
Connector,
Coos County,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Essex County,
Essex County,
Estuary,
Flow direction network,
Flume,
ForeShore,
Franklin County,
Franklin County,
Franklin County,
Gaging Station,
Gate,
Grand Isle County,
HU-4 Subregion,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0415,
HU6,
HU8,
HUC,
Hamilton County,
Hazard Zone,
Herkimer County,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Jefferson County,
Lamoille County,
Levee,
Lewis County,
Line,
Lock Chamber,
ME,
Maine,
Marsh,
NH,
NY,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Hampshire,
New York,
Nonearthen Shore,
Orange County,
Orleans County,
Orthoimage,
Oxford County,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rutland County,
Sea/Ocean,
Shapefile,
Shapefile,
Sink/Rise,
Somerset County,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
St. Lawrence County,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Swamp,
Topographic,
Tunnel,
US,
US,
Underground Conduit,
United States,
United States,
VT,
Vermont,
WBD,
WBD,
Wall,
Warren County,
Wash,
Washington County,
Washington County,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
Windsor County,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers,
stream,
surface water systems, Fewer tags
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Addison County,
Administrative watershed units,
Administrative watershed units,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Bennington County,
Boundaries,
Boundary,
Bridge,
Caledonia County,
Canal/Ditch,
Chittenden County,
Clinton County,
Coastline,
Connector,
Coos County,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Essex County,
Essex County,
Estuary,
FileGDB 10.1,
FileGDB 10.1,
Flow direction network,
Flume,
ForeShore,
Franklin County,
Franklin County,
Franklin County,
Gaging Station,
Gate,
Grand Isle County,
HU-4 Subregion,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0415,
HU6,
HU8,
HUC,
Hamilton County,
Hazard Zone,
Herkimer County,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Jefferson County,
Lamoille County,
Levee,
Lewis County,
Line,
Lock Chamber,
ME,
Maine,
Marsh,
NH,
NY,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Hampshire,
New York,
Nonearthen Shore,
Orange County,
Orleans County,
Orthoimage,
Oxford County,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rutland County,
Sea/Ocean,
Sink/Rise,
Somerset County,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
St. Lawrence County,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Swamp,
Topographic,
Tunnel,
US,
US,
Underground Conduit,
United States,
United States,
VT,
Vermont,
WBD,
WBD,
Wall,
Warren County,
Wash,
Washington County,
Washington County,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
Windsor County,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers,
stream,
surface water systems, Fewer tags
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Addison County,
Administrative watershed units,
Administrative watershed units,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Bennington County,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Coastline,
Connector,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Estuary,
FileGDB 10.1,
FileGDB 10.1,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
HU-8 Subbasin,
HU-8 Subbasin,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU6,
HU8,
HU8_04150401,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Levee,
Line,
Lock Chamber,
Marsh,
NY,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New York,
Nonearthen Shore,
Orthoimage,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rutland County,
Sea/Ocean,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Swamp,
Topographic,
Tunnel,
US,
US,
Underground Conduit,
United States,
United States,
VT,
Vermont,
WBD,
WBD,
Wall,
Warren County,
Wash,
Washington County,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers,
stream,
surface water systems, 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
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,
Carroll County,
Cedar County,
Clinton County, All tags...
Des Moines County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
Henderson County,
Henry County,
IA,
IL,
Illinois,
Iowa,
Jones County,
Knox County,
Louisa County,
Mercer County,
Muscatine County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Rock Island County,
Scott County,
Shapefile,
Shapefile,
US,
US,
United States,
United States,
Warren County,
Whiteside 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,
Aiken County,
Burke County,
Columbia County, All tags...
Downloadable Data,
Edgefield County,
Elbert County,
Elevation,
Elevation Terrestrial,
GA,
Georgia,
Glascock County,
Greene County,
Greenwood County,
Hancock County,
Jefferson County,
Lincoln County,
McCormick County,
McDuffie County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Oglethorpe County,
Richmond County,
SC,
Saluda County,
Shapefile,
Shapefile,
South Carolina,
Taliaferro County,
US,
US,
United States,
United States,
Warren County,
Washington County,
Wilkes 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,
Boone County,
Clarke County,
Dallas County, All tags...
Downloadable Data,
Elevation,
Elevation Terrestrial,
IA,
Iowa,
Jasper County,
Lucas County,
Madison County,
Marion County,
Marshall County,
Monroe County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Polk County,
Shapefile,
Shapefile,
Story County,
US,
US,
United States,
United States,
Warren 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,
Carroll County,
Cedar County,
Clinton County, All tags...
Des Moines County,
Downloadable Data,
Elevation,
Elevation Terrestrial,
FileGDB 10.1,
FileGDB 10.1,
Henderson County,
Henry County,
IA,
IL,
Illinois,
Iowa,
Jones County,
Knox County,
Louisa County,
Mercer County,
Muscatine County,
National Elevation Dataset (NED),
National Elevation Dataset (NED) 1/3 arc-second - Contours,
National Elevation Dataset (NED) 1/3 arc-second - Contours,
Rock Island County,
Scott County,
US,
US,
United States,
United States,
Warren County,
Whiteside County,
elevation,
ngda, Fewer tags
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