This is the Tower at the south end of the ridge of Martian Slab.
Continue up the trail from Orchard Rock.
Browse More Classics in Martian Tower
Mountain Project's determination of some of the classic, most popular, highest rated routes for Martian Tower:
Catacombs 5.7+ Trad
Butter Brickle 5.9+ Trad
Featured Route For Martian Tower