Came across this while doing some story research: Olympus Mons, complete with escarpment and aureole
It’s one picture of hundreds of its kind, cited as evidence of how impassible the escarpment around Olympus Mons is to surface-traveling explorers.
Yet…
Look at the left side in this picture (west-northwest on Olympus Mons). No escarpment. No impassible five-mile-high cliffs. Just a long slope. Kinda like the ones on the south side of the volcano.
I bet you could drive a rover up those slopes…