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Organ Pipe Cactus National Monument 

AZ Icon Organ Pipe Cactus National Monument
Route 1, Box 100
Ajo, Arizona 85321
Phone: 520-387-6849
FAX: 520-387-7144
Organ Pipe Cactus National Monument, Arizona.

Organ Pipe Cactus National Monument celebrates the life and landscape of the Sonoran Desert. Here, in this desert wilderness of plants and animals and dramatic mountains and plains scenery, you can drive a lonely road, hike a backcountry trail, camp beneath a clear desert sky, or just soak in the warmth and beauty of the Southwest.

Due to an increase in illegal border activity, all backcountry areas are closed indefinitely
to both hiking and overnight camping.
Check with the staff at the Visitor Center for current information.


The Monument headquarters is 22 miles south of Why via Highway 85.


Click for Ajo, Arizona Forecast

Campgrounds Used

Trails Hiked

Check our personal notes for detailed descriptions of these trails:

Regulations and Precautions

  • Mountain bikes on maintained roads only.
  • Beware of the cactus and six varieties of rattlesnakes, as well as Gila monsters and scorpions.
  • The best time to camp and hike is between mid-November and mid-March.

Archaeological Resources Protection Act Hotline: 800-227-7286.

Organ Pipe Cactus National Monument, Arizona.

Site design by Frank Stehno
All photographs by Frank Stehno unless otherwise indicated.
Copyright © 2017 by Frank and Anne Stehno. All rights reserved.
Site established in 2000.