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Global 30 Second Elevations

GTOPO30 is a global digital elevation model (DEM) resulting from a collaborative effort led by the staff at the U.S. Geological Surveys EROS Data Center in Sioux Falls, South Dakota. Elevations in GTOPO30 are regularly spaced at 30-arc seconds (approximately 1 kilometer). GTOPO30 was developed to meet the needs of the geospatial data user community for regional and continental scale topographic data.

Collection ID: gtopo30
WGS 84 Geographic Extent:
Minimum Latitude: -89.999999999988
Minimum Longitude: -180
Maximum Latitude: 90
Maximum Longitude: 179.999999999984
Coordinate Reference Systems
The native coordinate reference system of this collection is:
WGS 84 (http://www.opengis.net/def/crs/EPSG/0/4326)
The following other coordinate reference systems are also available:
The following resources are available for this collection: