Alamo Canyon runs eastward from Highway 85 through the Organ Pipe Cactus National Monument to the mouth of its namesake canyon. A campground with four sites and a vault toilet is at the trail's end. Each small site has a picnic table, charcoal grill, and enough room for a vehicle and a tent. The sites must be reserved through rec.gov. RVs, motorhomes, and trailers are not permitted.
The campground is also the trailhead for hiking Alamo Canyon into the rugged and colorful Ajo Mountain Range. There are several ruins from an old abandoned ranch in the verdant canyon.
The well-maintained road runs through a thick forest of saguaro cacti and a typical lower Sonoran Desert landscape.
This area is very close to the Mexican border. Smuggling and human trafficking activities are common. Be vigilant when visiting this area.