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Shuttle Radar Topography Mission Elevation Data
Description From http://www2.jpl.nasa.gov/srtm/: ... The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete... -
Landsat Data
Description Landsat ETM+, TM, and MSS data are available from USGS for free. Base data page leads on to: http://eros.usgs.gov/products/satellite/landsat_ortho.html Not entirely...
