Arch Canyon Trail – Ajo, Arizona - Atlas Obscura

AO Edited

Arch Canyon Trail

Organ Pipe Cactus National Monument

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments. 


Approximately equidistant from the cities of Tucson and Phoenix lies Organ Pipe Cactus National Monument, a park that abuts the border of the United States and Mexico. The park was set aside to protect the rare cactus for which it was named, and hundreds of miles of trails wind through the arid landscape.

One of those trails is the Arch Canyon Trail. The official listing for the trail is only 1.2 miles, which takes visitors briefly into a beautiful canyon which the arch overlooks. However, intrepid climbers have taken things into their own hands and fashioned a trail up a near-vertical cliff to get to the arches themselves. A steep, rocky 2.4-mile hike (more of a climb, really) leads to a set of natural arches and stunning views of Organ Pipe Cactus National Monument, Arizona, and Mexico.

The only clue that this trail exists is a sign that reads, ominously, “CAUTION: STEEP ROCKY ROUTE AHEAD.” Heed the sign’s warnings, and carry a first aid kit and plenty of water if you choose to find your way to the arches.

Know Before You Go

Organ Pipe Cactus National Monument charges at $25/vehicle fee for day-use of the park. Additionally, unless you are an experienced navigator, leave the cairns as they are. Do not build additional cairns. You will confuse future hikers.

Community Contributors
Added by
Edited by

June 10, 2021

Make an Edit Add Photos
In partnership with KAYAK

Plan Your Trip

From Around the Web