
Tartarus Colles
The hills in this image seen by NASA 2001 Mars Odyssey spacecraft are part of Tartarus Colles. Several of the hills have dark slope streaks, believed to be formed by downslope removal of dust revealing the darker rock beneath.

The hills in this image seen by NASA 2001 Mars Odyssey spacecraft are part of Tartarus Colles. Several of the hills have dark slope streaks, believed to be formed by downslope removal of dust revealing the darker rock beneath.