This is one of the best 12b's in Rock Canyon especially the lower half of Rock Canyon. Hard start followed by a shakeout, then a hard move, shakeout, over and over again until you arrive at the anchors thoroughly pumped. After the 4th bolt move up and left, if you go right you'll end up on Mucker. It doesn't get much better than this for steep, thuggy climbs. The start can be harder for those under 6', Bill found a cool trick to make it the same grade for shorter climbers. Email me if you would like me to give you the beta, otherwise good luck on your onsight!
Location
Scramble up to the base of #13 this photo. Belay from here. Go up and right until you can clip the first bolt. Follow the line in the picture from there.