This (opposite wall) is what I call the "Poncho Exit Chute from Heck". It's 800 feet of steep and loose rubble, but is the only route I know up up to the rim between Poncho Wash and Gem Canyon.

This is viewed from a chute on the opposite wall, that dead ended on a cliff above Muddy Creek.

Mike Kelsey photo.

The three of us (Mike, AJ, and I) each tried one of three chutes in the area. The one in the photo turned out to be the only practical route of the three.