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#1 Federal
Global Topographic 30 Arc-Second Digital Elevation Model: Released 1996
- Organization: Department of the Interior
- Dataset Last Updated: July 19, 2023 at 12:00 AM
'GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several raster and vector sources of...
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