This is a great example of an alternate route to a frequently visited peak in the Catalina range. This is a true off trail hike. There is no trail, there are no cairns, just a ridge line to follow.
You’ll leave the Pima Canyon trailhead as usual, traveling east. Right at a half mile from the trailhead, you should arrive at a large slab of rock, sloping uphill to your left, which should work itself into a very distinct ridge. If this is the case, turn left and leave the trail, following the slab upward. From here to Pusch, the general rule is to stay on the ridge.
As you depart the Pima Canyon trail, it is important that you look up at Pusch and the ridge that will connect you to it. There is one pivotal feature, about 1/2 of the way up that should be your interim guide. It is a distinctive rock spine that is easily seen from any point along your journey. Now that you’re briefed, let’s go.
Head northish, ever mindful to keep on the high ground, even though the terrain may seem flat at times, remember the rule. You will come in and out of brush and shin daggers throughout the trek. This isn’t too bad, but I wear pants, gloves and long sleeves for this one. Once on the ridge for just short of a mile, you’ll reach the base of the ‘rocky spine’ mentioned earlier. There, you’ll want to pick your preferred method of climbing the scree field that guards its approach. Your path is definitely right (east), as there is NO passage on the other side. Be careful here, as it’s very loose. Now past the scree field, you will feel prematurely relieved, as once again, the terrain would seem to be more mellow. Don’t get used to it, as you will soon be confined to the ridge (a rather narrow one at times) until you reach the peak.
Check out the Official Route and Triplogs.