Organ Pipe Cactus National Monument, Monument in Ajo, Arizona
Monument

Organ Pipe Cactus National Monument

Ajo · Arizona

Overview

About Organ Pipe Cactus National Monument.

Look closely. Look again. The sights and sounds of Organ Pipe Cactus National Monument, an International Biosphere Reserve, reveal a thriving community of plants and animals. Human stories echo throughout the Sonoran Desert, chronicling thousands of years of desert living. A wilderness hike, a scenic drive, or a night of camping will expose you to a living desert abounding with hidden life.

Auto and ATVScenic DrivingAstronomyStargazingBikingRoad BikingCampingBackcountry CampingCar or Front Country CampingHorse CampingGroup CampingRV Camping

Weather

Summer months are hot, with temperatures exceeding 100F during the day and night-time temperatures in the high 70's. Winter months are milder, with temperatures in the 70s during the day and 30's to 40's in the evening.

Key Facts

TypeMonument
DesignationNational Monument

Official Website

Entrance Fees

Entrance - Private Vehicle$25.00

Valid for 7 days. This fee includes all occupants of a non-commercial vehicle.

Entrance - Motorcycle$20.00

Valid for 7 days. Admits up to 2 private, non-commercial motorcycles with up to 4 total passengers.

Entrance - Per Person$15.00

Valid for 7 days. This fee applies to bicycles and walk-ins (per person)

Gallery

Photos of Organ Pipe Cactus National Monument.

5 images

Things to do

Discover Organ Pipe Cactus National Monument.

Ranger holding a Desert Ranger patch up to the camera. Native cacti are in the background.

Become a Desert Ranger

30-120 Minutes

For the 'Not-so-Junior-Ranger," or those looking for a challenge, the free Desert Ranger program allows the young at heart to earn their Desert Ranger badge and patch by completing an activity booklet available at the visitor center.

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A female ranger reviews a young boy's junior ranger booklet, with mom watching from the side.

Become an Organ Pipe Junior Ranger

30-120 Minutes

Become a Junior Ranger at Organ Pipe Cactus National Monument.

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Raptor like bird with a brown body, white chest, and black "toupee", perched on a saguaro

Birding at Organ Pipe

Organ Pipe sits along a primary migratory flyway, creating an oasis for bird enthusiasts of all levels. In addition to hosting an exciting array of migratory birds during fall and spring, we also have 36 species of resident birds that can be found year round at Organ Pipe.

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Desert landscape lush with many different

Drive South Puerto Blanco Road

2-3 Hours

South Puerto Blanco Drive is a two-way, graded dirt road that follows the southern boundary of the park and provides access to Senita Basin and Quitobaquito Springs. Great examples of organ pipe, senita, and saguaro cacti are visible along this route. This road can be washboarded – reduce your speed and allow extra time. These roads are doable in a normal passenger car. Trailers, buses, and motorhomes over 25 feet (8 meters) are prohibited on the drive.

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A rocky canyon filled with boulders and bright green Sonoran desert vegetation

Drive the Ajo Mountain Loop

2-5 Hours

The Ajo Mountain Drive is a 21-mile (34 km) graded, one-way dirt road that gives visitors an excellent overview of the landscape and flora or Organ Pipe Cactus National Monument. The drive takes approximately 2 hours, and has been designed so that a passenger car, driven with caution, may be taken over it safely. Trailers, buses and RVs over 25 ft (8 m) are prohibited on the drive. Several hikes and backcountry camping can be accessed from this drive.

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Dirt road leading into the desert. At the entrance is a gate and sign about border activity.

Drive the North Puerto Blanco Loop

For those looking for a longer, more rugged scenic drive through Organ Pipe, Puerto Blanco Drive is a great way to experience some of the park’s volcanic geology, mining history, and natural springs. The 41 mile Puerto Blanco Loop is broken into two parts: North Puerto Blanco Drive and South Puerto Blanco Drive.

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Desert trail leading towards red colored canyon. Saguaros grow next to the trail.

Hike Alamo Canyon

1-2 Hours

The Alamo Canyon Trail follows an old road to a historic ranch house and corral, and provides ample wildlife and wildflower viewing opportunities.

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Two natural arches, stacked on top of each other, with the moon peeking out from behind.

Hike Arch Canyon

60-90 Minutes

One of the most photographed sites along the Ajo Mountain Drive are the double arches carved into the mountains. Walking the easy, relatively flat Arch Canyon trail provides wonderful opportunities to see wildflowers and gaze upon the rhyolite arches.

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Female visitor hikes on desert trail, surrounded by

Hike the Estes Canyon/Bull Pasture Loop

1-3 Hours

The moderate Estes Canyon trail provides ample wildlife and wildflower viewing opportunities while a steep, strenuous climb up the Bull Pasture spur trail will reward visitors with spectacular views of the Sonoran Desert.

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