Casual IntermediateHike Detail SheetHikes

FAT MAN’S PASS & NATURAL TUNNEL VIA MORMON TRAIL (CI)

By February 13, 2025 July 3rd, 2025 No Comments
Approx hike distance (miles): 3.7 Area: South Mountain Park
Accum.  elevation gain (feet): 930 Park Entry Fee: No
Low to high elevation gain: N/A SCAMR All Trails Map: Yes
Recommended gas donation: $10 Website for reference info: All trails, hidden valley trail via Mormon trail
Unpaved miles: 0 Trailhead GPS Coordinates 33.36645, -112.03101
Road Conditions: Good High clearance vehicle req’d: No

Please arrive 10 minutes prior to departure to check -in

Trail Conditions
Maintained Trail: Yes Uneven footing Yes
Steep side drop-offs No Steep Trail: Yes
Off Trial (scratchy) No Slippery Trail Surfaces: No
Use of hands required: No Boulder Hopping: No
Difficulty: Strenuous Water Crossings: No
Restrooms at Trailhead: No Gloves Required: No

 

Special Instructions:

This trail offers some interesting features like tunnels, dry waterfalls and a squeeze through Fat Man’s Pass.  The first mile of the trail is quite challenging, but there are plenty of opportunities to stop and enjoy the scenic views all the way to the top of the ridge.  Once you reach the ridge, you’ll leave the Mormon Trail and enter the Hidden Valley Loop, which has even more fun to offer.  Bring water, snack and hiking sticks.

Directions:

From the Union Center turn left on Sun City Blvd, right on Merrill Ranch Parkway, left on Hunt Hwy, right on Attaway Rd, right on AZ-287, left on AZ-387, right on I-10 West (29 miles).   Take Exit 155 (Baseline Road).  Turn left, and in 3.7 miles turn left on S. 24th St.  In 0.8 miles turn right into the Mormon Trailhead (8610 S. 24th St, Phoenix AZ).