L to R R to L Alpha
The crux is hard laybacks down low. At the top is a big alcove you have to power your way out of.
On the up road side of Green Slabs. Head up the stream bed about 100 feet then head right for a large downed tree. Hike up next to it half way then contour back to the wall. This route starts left of Greenhorn and just right of a broken up gully.