Tom's ThumbIconic 140-foot granite boulder formation rising above the desert.
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Route Stories
50,000 stories are waiting to be told. Press play on one.
Every pin is a route, and every route is full of stories.
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This is a hard run through the desert past granite boulders and the tall rock spire called Tom's Thumb, with wide views across the Sonoran Desert. Bring your own water, since none is provided on the trail or at the trailhead. Restrooms and shade are available at the start, and it is best to go early or late to avoid the heat.
A 7.2 km out-and-back route from Rio Verde to walk, run or cycle, with 403 m of climbing.
