US GEOLOGICAL SURVEY / SCIENCE PHOTO LIBRARY US GEOLOGICAL SURVEY / SCIENCE PHOTO LIBRARY
Colca Canyon, Peru, satellite image. The Colca Canyon was carved by the erosion of rock from the Rio Colca. The canyon stretches for 100 kilometres and measures over 3,400 metres at its deepest. Image taken in May 2014 by the OLI (Operational Land Imager) on board the Landsat 8 space satellite. This image covers an area measuring 92 kilometres squared.
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