Grass Shack Campground

Embark on a rewarding journey from the Alta Loma Trailhead to Grass Shack Camp, a moderate 9.6-mile (15.5 km) hike that offers a dramatic ecological transition. You'll start among towering Giant Saguaros in the Sonoran Desert, gradually ascending through diverse terrain until you reach cooler pine forests near Grass Shack Camp. The route provides expansive views of the Rincon Mountains and Tucson Valley, making the 2592 feet (790 metres) of elevation gain well worth the effort over approximately 4 hours and 48 minutes.

Planning your visit requires a few considerations. As the trail is within Saguaro National Park, expect park regulations and potential entrance fees. If you intend to camp overnight at Grass Shack Camp, a backcountry permit from the National Park Service is mandatory. Parking is available at the Alta Loma Trailhead, but it's advisable to arrive early, particularly during busy periods, to ensure you find a spot.

This trail is notable for its unique shift from desert to pine forest, showcasing the rich biodiversity of the region. Portions of the route are also part of the larger Arizona Trail, so you might encounter thru-hikers. Keep an eye out for diverse wildlife, including foxes and coyotes, and appreciate the historical elements like old ranch roads that hint at the area's past.