All Along the Wallrock
Looking at exposed layering in the wallrock of canyons never gets boring, especially if it’s in Coprates Chasma, part of the Valles Marineris canyon system.
There might have been a lake in Coprates, the evidence for which is the presence of benches at the level that models show is where a lake level should be. (North is to the left).
NASA/JPL/University of Arizona