View of part of Echus Chasma (upper left) in mosaic of THEMIS infrared images. Hebes Chasma is at upper center and right, and Perrotin Crater is just left of lower center.
Echus Chasma is approximately 100 km long and 10 km wide, with valleys ranging in depth from around 1 km to 4 km. It is the source region of the Kasei Valles outflow channel, which extends northward from it. It is situated just west of Hebes Chasma, to which it does not connect.
- ESA (2008-07-14). Echus Chasma. Retrieved on 2008-07-15 from http://www.esa.int/esaSC/SEM4CATHKHF_index_0.html.
- Smith, Graham (2008-07-15). Incredible pictures of Mars - and they look surprisingly like some parts of Earth. Retrieved on 2008-07-15 from http://www.dailymail.co.uk/sciencetech/article-1035440/Incredible-pictures-Mars--look-surprisingly-like-parts-Earth.html.
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