The rock on Mars is dark red Wingate, vertical with overhanging sections. The routes are well bolted and ranging from 40' to 95' in length.
Getting There
Use the same approach as The Scar (Potash Road) but head right when meeting the cliff band. There is a trail. Approach time is approximately 15 minutes.
The Classics
Mountain Project's determination of some of the classic, most popular, highest rated routes for Mars:
I noticed that the development of this crag entailed the use of some sealant on the hand and foot holds. I am guessing that this was used to help preserve the rock. I have not seen this in use before in the desert. It seems that we just take it as a matter of course that climbs change and erode over time. It will be interesting to see if this technique helps to slow the erosion/hold breaking process.