**UPDATE 8/13/2011** – I have made a couple important updates. First, I have released a global version of the very popular 90-meter terrain map. I have also relaxed the licensing restrictions to allow for commercial use. See below for more details on both of these changes.
There are many ways to [...]
This terrain map of California was created by combining the NASA Blue Marble imagery with the global elevation data from the Space Shuttle Radar Topography Mission (SRTM). The combination of these two data sets creates an amazing new way of viewing the Earth’s topography and landforms.
The SRTM elevation data is detailed enough [...]