Santa Catalina Mountains - Coronado NF
Marshall Gulch Trail
A scenic traverse from Summerhaven to the Catalina Highway through aspen groves and mixed conifer forest
Distance
8.5 miles
Difficulty
Moderate
Elevation Change
~2,500 ft
Best Season
Mar-May, Sep-Nov
Route Overview
The Marshall Gulch Trail traverses the western slopes of the Santa Catalina Mountains, connecting the mountain village of Summerhaven with the Catalina Highway (AZ-831/Sunrise Drive). The 8.5-mile route follows Marshall Gulch - a lush, forested drainage that supports some of the most diverse vegetation in the Catalinas.
The trail passes through a remarkable ecological transition: from Sonoran Desert at the western trailhead, through oak and pine forest, to stands of quaking aspen near the high point. The gulch itself is shaded and cool, offering relief from the desert heat below. Wildflowers are abundant in spring, and the aspens turn brilliant gold in fall.
The trail can be done as a shuttle hike (car spot required) or as an out-and-back. It connects with the West Fork Trail and other Catalina routes for longer loop options. The trail is well-maintained and moderately graded, making it accessible to hikers with some experience.
Route Description
Trailhead: The Marshall Gulch Trail has two access points. The upper trailhead is in Summerhaven (the mountain village on Mt. Lemmon), accessible via the Catalina Highway from Tucson. The lower trailhead is at the end of Marshall Gulch Road off Sunrise Drive in northeast Tucson. A car spot is needed for a shuttle hike.
Upper Section: From Summerhaven, the trail descends into Marshall Gulch through mixed conifer forest. The initial miles follow a moderate grade through pine and fir forest with dappled shade. The trail passes through the upper reaches of the gulch where aspen groves are concentrated.
Middle Section: The trail follows the gulch bottom through a lush, shaded corridor. Oak, maple, and alder line the drainage. The tread is well-maintained with a moderate grade. This section is the most scenic, with the canyon walls closing in and the vegetation becoming increasingly lush.
Lower Section: The trail descends toward the lower trailhead, transitioning from forest to desert scrub as elevation drops. The final miles are exposed with limited shade. Arrive at the lower trailhead near Sunrise Drive.
Permits & Regulations
Permit Required: No. No permits are required for day use on Marshall Gulch Trail.
Bighorn Sheep Closure: Check current closures with the Coronado National Forest. From January 1 through April 30, certain areas may be closed to protect bighorn sheep. Dogs may be prohibited in the Bighorn Sheep Management Area during closure periods.
Summerhaven Access: The Catalina Highway (AZ-831) is the only road to Summerhaven. It's well-maintained but winding - allow extra time for the drive from Tucson.
External Resources
Return to: Arizona Backpacking Regions