|Petroleum Base Buttress
This climb ascends the crack system in the middle of the face to the right of FK Face. It is one of few Den Rock climbs that can be safely led. Start on jugs in a big horizontal break and follow a depression up to a ledge. Then, layback a right-slanting crack towards the top, breaking left onto an easy slab to gain the anchors.
Just past the large talus boulder below Building Blocks. A small boulder, or a 'shelf' for your gear is just opposite the climb.
Gear to 2". The cracks aren't especially favorable to nuts.
Alan Jenkins taking a crack.