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Start Over Subject Altitudes Place Africa Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. DCW Hypsography, Lines

Datasets Harvard University Public content
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a line coverage representing hypsographic (contour line) features located throughout DCW (Digital Chart of the World) geographic ... National Imagery and Mapping Agency.

2. DCW Hypsography Lines, Supplemental

Datasets Harvard University Public content
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polyline coverage representing hypsographic features (contour lines) located throughout DCW (Digital Chart of the World) geogra... National Imagery and Mapping Agency.

3. DCW Hypsography, Points

Datasets Harvard University Public content
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing hypsographic features (spot elevations) located throughout DCW (Digital Chart of the World) geograp... National Imagery and Mapping Agency.

4. DCW Hypsography Points, Supplemental

Datasets Harvard University Public content
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing hypsographic features (spot elevations) located throughout DCW (Digital Chart of the World) geograp... National Imagery and Mapping Agency.

5. DCW Hypsography, Polygons

Datasets Harvard University Public content
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polygon coverage representing hypsographic features (as elevation zones) located throughout DCW (Digital Chart of the World) ge... National Imagery and Mapping Agency.

6. Global GIS : Drainage Basins

Datasets Harvard University Public content
2003. EROS Data Center, Geological Survey (U.S), American Geological Institute, and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a polygon coverage representing hydrologic drainage basins located worldwide. The data displayed here is derived from the HYDRO 1... American Geological Institute.

7. VMap1 Contour Lines

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a polyline coverage representing contour lines located throughout current VMap1 geographic coverage areas. This layer was derived...

8. VMap1 Elevation Control Points

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing Control Points or Control Stations located throughout current VMap1 geographic coverage areas. Feat...

9. VMap1 Elevation Text Label Points

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing named locations of elevation text label points located throughout current Vmap geographic coverage ...

10. VMap1 Elevation Void Collection Areas

Datasets Harvard University Public content
1995. National Geospatial-Intelligence Agency. This datalayer is a polygon coverage representing Elevation Void Collection Area or areas lacking suitable source coverage, or where data is not re...