A Caldera’s Steep SlopesThis image shows part of the steep wall…

A Caldera’s Steep Slopes

This image shows part of the steep wall of the caldera (a large volcanic crater) at the top of Ascraeus Mons, one of Mars’ giant volcanoes.

We can see chutes carved into the soft dust that has built up on the slope, with some similarities to gully landforms elsewhere on the planet. 

NASA/JPL/University of Arizona