Alcatraz Canyon

Some of this information is from Climb-Utah.com

Alcatraz Canyon is a remarkable slot canyon with a large assortment of downclimbing. I strongly suggest wearing a long-sleeve shirt and long pants for this slot unless you enjoy raspberries. This canyon is hard on gear; expect ripped pants, torn shirts, and thrashed packs. This is a physical, technical canyon and requires moderate climbing skills and technique. A headlamp is useful in several of the darkest sections of the slot. Alcatraz Canyon requires complete technical gear. In normal conditions this canyon might require knee to chest-deep wading with the possibility of a short swim. The canyon is accessible year-round unless there is snow on the ground. A vehicle shuttle is not required to complete this route.

Total time required from trailhead to trailhead is 4 to 5 hours. A GPS is useful. Good map reading skills and the USGS 7.5' Map titled "Angel Point" are essential. Navigation for this route is moderate. All waypoints and maps for Alcatraz Canyon use the WGS84 datum. Alcatraz Canyon is rated 3A R III using the Canyon Rating System. This canyon has a moderate flashflood danger, check the local weather report before entering this canyon. The entire drainage and a clear view of the western sky are visible before committing to the canyon.

Alcatraz Canyon features what is known as a "Mae West Slot" which is a slot so narrow that it is impossible to pass through. This feature forces you to climb up and over the obstacle. Mae West canyons require the use of a "Mae West bunny" or bunny strap. This is a length of webbing or a daisy chain with a carabiner attached. This setup that will allow you to hang your pack from your harness while you chimney, climb and stem above and through the narrow slots. A bunny strap is a must-have item.

The longest rappel in the canyon is 165 feet. The route requires both a 60 meter rope and a 100-foot rope. Additional gear should consist of several shoulder-length slings, a couple double-length slings, 75 feet of webbing, several rapid links, and a prusik system. Part of the appeal of this canyon is that many of the numerous drops offer the opportunity to downclimb instead of rappel.

Warning:
Large-frame canyoneers will have a difficult time descending Alcatraz Canyon. My chest measurement is 43" around and at times I found it necessary to climb up and over obstacles that Smurf-sized canyoneers could squeeze through. If you have moderate climbing ability and help from friends, you should not get trapped in this canyon no matter your size. Large-frame canyoneers will have to work much harder than Smurf-sized canyoneers to descend this route. All the squeeze obstacles can be defeated by climbing up and over them. However, if you cannot do the climbing you are in serious trouble. Bring the smallest pack possible. You have been warned!