1. Climb to base of a thin seam, move past this (crux) and belay at two bolts on a ledge. 5.9, 50 feet.
2. Go up and left to some left facing corners. At the top of these corners, move right to a large ledge. 5.8, 100 feet.
3. Diagonal up and right to the right end of the ceiling above. Climb through an obvious notch (crux). 5.9, 60 feet.
Can't see this one ever catching on - too obscure for most people. But there's a lot of interesting climbing and all three pitches are distinctly different from each other.
Standard 'Gunks rack
The trail up to the base begins on the right side of the Boxcar boulder. The start of Los Tres Cabrones is approximately 150 right from where the trail meets the cliff. Go around a short boulder pile, up a bit, and look for the seam; it starts about 25 feet up.