Canyon wall in Buckskin Gulch, Paria Canyon Wilderness. The Buckskin Gulch, a canyon in southern Utah, is one of the main tributaries of the Paria River, which is itself a minor tributary of the Colorado River. It is the longest and deepest slot canyon in the southwest United States and may very well be the longest in the world. As such it is one of the premier destinations for slot canyon hikers, and receives a high amount of foot traffic.
At over 13 miles (21 km) in length it is often visited in conjunction with the longer Paria Canyon, although some prefer to make a long day trip out of the hike. With a distance of 20 miles (32 km), hiking this canyon in one day is possible. Wire Pass, a short tributary to the Buckskin, is an ideal alternative for a short day hike that still takes hikers through the narrow, curving features that are the hallmark of slot canyons