Image: Granite Wash Mountains 2005
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Description: Granite Wash Mountain perches an hour and a half west of Phoenix, and is a field geologist's dream location for studying the history of Earth and, by analogy, of Mars. Within a 10-foot stretch of dazzling dirt, Granite Wash reveals the same 400-million-year history of rock layering found in the Grand Canyon. It also happens to be home to the largest cacti population in the United States.
Title: Granite Wash Mountains 2005
Credit: http://www.nasa.gov/vision/universe/solarsystem/mer-03302005_prt.htm
Author: NASA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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