Tom's Thumb via Gateway Trail

The Tom’s Thumb via Gateway Trail is a route in the McDowell Sonoran Preserve. This trail gets you to the top of Tom’s Thumb (which does, indeed, resemble a thumb) on a different approach than the traditional trail. This route is better suited to strong climbers who prefer a full-day hike. Expect a long trail with varied mountain views. This one isn’t kid-friendly.

Since you’ll be out in the desert for several hours, make sure you bring lots of water, choose a cooler day for this hike, and consider leaving dogs at home unless you have water for them and the forecast isn’t too hot.

From the trailhead, the first half of the hike is fairly relaxed and not as scenic, but things get more interesting as you go. Follow Gateway Loop as it heads between Horseshoe Ridge and Drinkwater Peak. The trail will start to gain elevation more aggressively shortly after you hike underneath Inspiration Viewpoint. Climb up through the saddle, the thumb in sight. You’ll enjoy a brief descent down to the thumb at the top of the hike. Take in the view and then retrace your steps.