F South 91 is a hiking, biking, and horse trail in Coconino County, Arizona. It is within Kaibab National Forest. It is 3.4 miles long and begins at 6,897 feet altitude. Traveling the entire trail is 6.8 miles with a total elevation gain of 301 feet. The Caporal Tank (elevation 6,850 feet) reservoir can be seen along the trail.
Sign in/up to upload photos.