Mount Kimball is one of the most prominent and accessible peaks along the Catalina skyline north of Tucson. For these reasons and because Finger Rock Canyon trail is so vertical and intense, Mount Kimball acts as Tucson's mountain running proving ground. Climbing the narrow rocky trail fast is one thing, but turning around and sending it back to Tucson is what makes this FKT so thrilling. By way of description, summitpost.org writes that "Mt. Kimball is one of the highest peaks along the southern front of the Santa Catalina Mountains.