SRTM Overview

The Shuttle Radar Topography Mission flew on the space shuttle in 2000.  In just under two weeks, the mission collected elevation data for 80% of the Earth's land surface area.  The data is now available in three resolutions:

Even almost 15 years later, for much of the world this is still the best available data, and for many places it is the only free data.

Last revision 2/19/2014