Hi Kanga,
you posting here ?? What a kind of a premiere. -- Concerning Andrew I think I've found a compass for him. It's right in front of him showing him clearly the eastern direction. It's summit is 24 kilometers above surrounding ground level and it's escarpment moves straight up a six-thousand meters. I think, that should do it.
In my opinion he ran north or west, as he is in rough terrain with hills or mountains to climb on. South of him are plains and if he turns east by moving southbound around barriers, he should the plains between Olympus Mons and the Mountain Chain. Either looking for the other probes then or heading north till he reaches the trenches Gail once dig, which lead him directly to the Fortress.
I had this idea this morning, when I woke up looking out of the windows seeing at one hand the Patscherkofel-Mountain in the south and the so called "Northern Range" at the other ... see you ...
m.f.g.
X