Overview
Finger Rock Canyon provides for the simplest and most direct line to the summit of Prominent Point. For much of the hike, you are hemmed into the canyon, so the views are not as expansive as those for the Southwest Ridge, but if you choose to bushwack up the canyon bottom, it provides for a challenging desert adventure. For those who prefer easier going, there are use trails that climb higher up Mt. Kimball, then traverse over to join the route where it branches off from the ascent route for Finger Rock.Getting There
The route begins at the Finger Rock Canyon trailhead which is at the end of Alvernon Avenue, about a mile north of Skyline Road, and is approximately 3100 feet above sea level.Route Description
The upper part of the Route to the summit of Prominent Point, traverses left from the gully leading up to Finger Rock to the tree filled gash on the left of the picture using the grass, bush and shindaggar slopes beneath the steep summit cliffs of the peak. There are cliffs and a significant break between the cactus in the foreground and the base of Finger Rock Canyon.
Once past this steep point, Finger Rock will be directly above you to the north. Instead of proceeding up to it, look slightly to the left and you will see steep cliffs descending down from the upper regions of Prominent Point. These end at a grassy slope that traverses several hundred feet to the right, into a gash rising up just to the east of Prominent Point's Eastern Summit. Traverse across to this gash, then follow it up past trees to the ridgeline. Do not turn left into the gully between the two summits along this stretch unless you are aiming to climb the shorter Western Summit. At the ridgeline, expansive views of the upper reaches of Pima Canyon appear. After admiring them, turn left and make a short scramble to the highest summit of Prominent Point.
From the upper reaches of Finger Rock Canyon, it is an easy matter to continue up to Finger Rock, and to climb the "Finger Rock Guard" to its right. All three summits could be climbed by a proficient team in a single outing.
In his Finger Rock page, Jeff Moore describes an alternate route which avoids the brush and the 4th class section of the canyon floor, but adds on additional elevation gain and mileage. (I have not personally taken this trail, so can't speak about its relative ease or difficulty.) Instead of turning into the base of the canyon at Finger Rock Springs, continue for another two miles up the Finger Rock Trail to an elevation of 5000 ft. where you reach a flat grassy patch overlooking the canyon. This will be immediately after several steep and rocky slabs and due east of the hidden Finger Rock. Descend north on a use trail 200 feet down into the canyon, rather than turning to the east towards Mt. Kimball. The trail, marked by cairns, will then work steeply up the canyon to a saddle north-east of Finger Rock. From here, aim for the west side of Finger Rock. When the trail splits, take the right branch to reach the Finger Rock Saddle to the west of Finger Rock. From here, it is possible to descend south a couple hundred feet to reach the break in the cliffs to the west, where you join the route coming up Finger Rock Canyon. Alternately, you can take the left fork of the use trail to the summit of the Guard with its nice view, then descend steeply to the south to get beyond the cliffs on the west face of the Guard, then traverse across the slope, under the summit cliffs of Prominent Point, then up the gash to the summit.
Once, we attempted to reach the summit of Prominent Point directly up the ridge from the Finger Rock Saddle, and turned around when it got a bit exposed. This route would probably make a nice adventure, though.
Tucson Mountain Ranges

