Ius Chasma

Today's VIS image shows part of Ius Chasma (top of image) and part of one of the giant gullies that dissect its southern rim (bottom of image). Ius Chasma is at the western end of Valles Marineris. Valles Marineris is over 4000 kilometers long, wider than the United States. Ius Chasma is almost 850 kilometers long (528 miles), 120 kilometers wide and over 8 kilometers deep. In comparison, the Grand Canyon in Arizona is about 175 kilometers long, 30 kilometers wide, and only 2 kilometers deep.