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International Digital Elevation Models (DEMs) cover the entire world seamlessly. There are three seamless DEM products currently available with a fourth partially available. The products available are ETOPO5, ETOPO2, GTOPO30 and SRTM-90.
We sell these DEMs in the following formats: USGS DEM, DXF Mesh, GeoTIFF, ASCII XYZ, Arc ASCII Grid, RockWorks, Terragen and Surfer Grid (Binary or ASCII). All data formats are available for immediate download upon submittal of credit card with the data being cut to your specific project area. The projection is Geographic (Lat/Long), WGS-84. Coordinates being in Arc-Degrees.
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