Up close, though, the mountain, which has thorny stands of catclaw on the way up is not as flat as it looks from a distance. On the north side, the cliff drops off for more than 500 feet. Nice place to lean back against a rock, munch a sandwich and take in the view. The Thumb . This large, rectangular rock makes a nice platform to view the Tucson valley.
Determined hikers can work their way around the side and grunt and clamber to the top.
Finger Rock Canyon . Another of the Catalinas' major canyons, this is the place to go if you want a closer look at Finger Rock, without having to actually climb it. It's also another way to get to Mount Kimball. A 5-mile trail, beginning at the north end of Alvernon Way snakes its way up the canyon and finally to the top of Mount Kimball. If five miles is too far, the trail passes Linda Vista Saddle three miles up.