This is the route up the bulging tan/brown stone just left of the uber-popular 80 Feet of Meat. It is also one route right of Le Specimen.
Dirt isn't called Dirt for nothing -- low traffic and a wide brown streak which runs straight down the route ensure that most years (unless someone's been up there first to brush it), the route will have pretty sandy grips. Nevertheless, it's a pretty fun climb on good stone and could clean up well with some travel.
Pull through an awkward bulge on pockets and stand up on the vertical face. Easier climbing leads to the crux bulge, which has two fairly strenuous sequences back to back before you reach bigger holds and gently overhanging terrain. Pumpy climbing on good incuts and pinches leads to anchors on a ledge (the same ledge where Le Specimen finishes).