From flagstaff drive up US 180 heading to the Grand Canyon. Turn Left on Schultz pass rd. Continue up the rd until you reach Schultz tank. Park at Schultz Tank (a small pond).
Hike up the Weatherford trail until you reach the saddle. Facing the Inner Basin, Fremont is on the left and Doyle is on your right. Hike up the ridge staying left of the ridge. There may be some class 2+ sections. This is not an easy route and you ascend 1,200 feet from the saddle. If you hike up the right side of the ridge, you will head up dangerously exposed areas and could be impossible to climb.
From the pass you could also hike Doyle for a Steep but easier climb.
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