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Craters & Cacti Trail

Updated: Oct 24

Epic desert bluffs and craggy mountains, ancient craters and massive dune fields, Saguaro Organ Pipe cacti alike. The Craters and Cacti Trail is unlike any overland route in the Southwest. Get your papers and passport and head down to Arizona's borderlands!



Route Overview


Trip Length & Season

Adventure Rating:  Epic

Trip Length:  302 miles, 3-5 days

Season:  Recommended October - May to avoid excessive heat during warmer months.

Digital Maps & GPX Files

Download Digital Mapping Files

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Technical Ratings & Terrain

Avg Technical Rating: 1

Peak Technical Rating: 2

Typical Terrain: 70% dirt, 30% pavement. Most dirt roads are graded and in relatively good condition.

Recommended Vehicle / Moto / Adventure Vans

Recommended Vehicle: Stock 4x4

Recommended Moto: A big or mid-sized is suitable for this trip.

Adventure Vans: Sprinters and Transit Vans (AWD/4x4) are good to go.

Fuel, Provisions, and Recommended Gear

Fuel:

  • Puerto Penasco to Sonoyta is 155 mi

  • Sonoyta to Ajo is 145 mi

Provisions: Provisions can be obtained in the same places as fuel.

Gear: n/a

Alternative Routes

Organ Pipe National Monument

Technical Rating: 2

Those seeking a shorter adventure and who may not wish to cross the border can easily do the Organ Pipe Cactus NM portion of the route. We recommend setting aside 2-3 days for exploring the park and traveling the route. By cutting out the Mexican portion of the route, the mileage is cut in about half.

Camping Recommendations

Dispersed camping is not permitted with Organ Pipe Cactus NM or el Pinacate Biosphere Reserve. For Organ Pipe, we highly recommend making your camping reservations in advance, while at el Pinacate, you will need to fill out paperwork (no advance reservations) if you'd like to stay at one of their campgrounds. Dispersed camping is permitted on el Camino del Diablo north of Organ Pipe NM.

  • Alamo Canyon Campground

  • Rojo Cono

  • el Tecolote

  • Bahia la Choya (beachfront camping)

Discovery Points

  1. El Malecon Fish & Shrimp Market

  2. Faro Puerto Peñasco Cerro de la Ballena

  3. Bahia la Choya

  4. Schuk Toak Museum

  5. el Pinacate Sand Dunes

  6. Rojo Cono

  7. Crater El Elegante

  8. El Tecolote

  9. Cerro Colorado

  10. Sonoyta

  11. US-Mexido Border

  12. Gachado Line Camp

  13. Dos Lomitas Ranch

  14. Victoria Mine

  15. Kris Eggle Visitor Center

  16. Ajo Mountain Drive

  17. Ajo Window (double arch)

  18. Mount Ajo

  19. Alamo Canyon

  20. Puerto Blanco Drive

  21. Dripping Springs

  22. Golden Bell Mine

  23. Bonita Wel

  24. Pozo Nuevo

  25. Bates Well Ranch

  26. Darby Wells Cemetery

  27. Ajo Scenic Loop

  28. New Cornelia Mine

  29. Ajo

Land Managers & Other Resources

Permits & Papers

You will need a passport and Mexican vehicle insurance to cross the US-Mexico border. Be prepared to pay entrance fees at both Organ Pipe Cactus NM and El Pinacate Biosphere Reserve. Camping and driving the self-guided crater tour at el Pinacate requires filling out paperwork at the Schuk Toak Visitor Center. Occasionally the crater tour is closed to the public. Please call ahead or check el Pinacate's website to confirm the status of the self guided crater tour.


Adventure Badge 

OTG has partnered with All Roads Taken to offer an adventure badge for this route.


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Route Details

The Sonoran Desert stretches from the borderlands of Southern California and Southern Arizona into the northern Mexican state of Sonora. On the northern side of the border, mountains with craggy bluffs and buttes abound. To the south lies a series of ancient craters bordered to the east by the massive dune fields of the Gran Desierto de Altar. The route travels through parks and can be driven in either direction. On the American side of the border, the route passes through the impressively scenic Ajo Mountains within Organ Pipe National Monument. To the south, you'll traverse what seems like a Martian landscape as you make your way through the various lava fields and ancient volcanic craters of El Pinacate y Gran Desierto de Altar Biosphere Reserve. The parks conjoin as part of a much larger UNESCO Biosphere Reserve.


Sometimes referred to as "Arizona's beach," the popular resort town Puerto Peñasco marks the official start of the route (which can also be done in the opposite direction). Over the last decade, Puerto Peñasco has seen a considerable amount of construction to attract stateside tourists, so unfortunately, there's not much wild camping along the beach (check Bahía la Choya), unless you go further north or south. Take the highway to El Pinacate Biosphere Reserve. You'll need to check in with the information center (Schuk Toak Museum) and fill out a form before you're authorized to drive the dirt roads that make up the Craters Route. You can also make arrangements to reserve a campsite at El Pinacate, as backcountry camping is not permitted within the reserve.


Pinacate comes from the Náhuatl language word pinacatl, for the Pinacate beetle, a stink beetle endemic to the Sonoran Desert. Despite its proximity to the US border, few Americans have ever heard of Pinacate, which remains a hidden gem. During your travels through El Pinacate, you'll pass by four major craters within the reserve. Crater Elegante is the largest, at over 1 mile wide and 800 feet deep. Cerro Colorado is distinguishable by the color of its red volcanic rock, whereas the other craters come in hues of volcanic black (except for Rojo Cono, which translates as "Red Cone"). Don't expect anything technical while exploring the Craters Tour, as 2WD passenger cars are permitted on the dirt roads. If you want to explore the massive dune fields to the east of the craters, check out the Sonora Backcountry Discovery Trail.


From El Pinacate, head north, where Organ Pipe National Monument awaits across the border. With its desert plains interrupted by craggy buttes and mountains, Organ Pipe embodies the classic desert landscape of the Sonoran Desert in Arizona. The park is home to an extraordinary number of different types of flora and fauna. If you're lucky, you might catch a glimpse of a pygmy owl, bobcat, coyote, mountain lion, or bighorn sheep. The National Monument also happens to be one of the few places in the United States where the Organ Pipe cactus grows in the wild, which can grow up to 26 feet in height.


Compared to other national parks and monuments in the Southwest, Organ Pipe sees relatively few visitors (about 260k per year). Highway 85 bisects the national monument, running north to south. It is from this stretch of pavement that you'll explore the various dirt roads and trails that travel the backcountry surrounding the Ajo Mountains. First up, you'll explore the dirt roads that run along the border to Gachado Line Camp (discovery point, an old well) and Dos Lomitas Ranch (discovery point), where the old adobe ranch house still stands. From Dos Lomitas Ranch, follow your tracks back to Highway 85 and take the dirt road up to Senita Basin, which is a great place to break for lunch or explore on a hike (there are various hiking trails in the area). Once again, trace your tracks back to Highway 85 and head north for the Ajo Mountain Loop.


The Ajo Mountain Loop is an incredibly scenic dirt road that loops through the Ajo Mountains and below Ajo Peak (discovery point, elev. 4,811'). It's also probably one of the most popular areas within the park, but don't expect to see throngs of visitors. Next, you'll head north on Highway 85 headed for Alamo Canyon. If you are seeking a camping experience that is a bit less developed, consider making reservations at Alamo Canyon. Consider taking the short hike into Alamo Canyon (discovery point) that also leads to the ruins of an old ranch and line camp. Once you depart Alamo Canyon and head south down Highway 85, you'll be headed into the true backcountry of Organ Pipe NM. Along the way, you'll pass old wells, mines, ranches, and natural springs. The trail is relatively mild for the most part, and the most you're likely to face is some sand (be prepared to air down). As you veer right to head toward Bates Well Ranch, the track traces the historic El Camino Del Diablo trail, which translates to The Devil's Road.


El Camino Del Diablo is an ancient 250-mile-long trail that has been in use for at least the last thousand years. The road was originally established as a footpath among various aboriginal groups that inhabited the region. El Camino Del Diablo also happens to be a favorite overland route in Arizona's southern corridor. A few miles north of Bates Well Ranch, the route moves beyond the boundary of Organ Pipe NM. Once you're past the boundary, dispersed camping is permitted. The route ends just outside of the town of Ajo, at the pavement of Highway 85.

GALLERY


Terms of Use: Should you decide to travel a route that is published on Overlandtrailguides.com, you do so at your own risk. Always take the appropriate precautions when planning and traveling, including checking the current local weather, permit requirements, trail/road conditions, and land/road closures. While traveling, obey all public and private land use restrictions and rules, and carry the appropriate safety, recovery, and navigational equipment. The information found on this site is simply a planning resource to be used as a point of inspiration in conjunction with your own due-diligence. In spite of the fact that this route, associated GPS track (GPX and maps), and all route guidelines were prepared under diligent research by Overland Trail Guides, the route accuracy and current conditions of roads and trails cannot be guaranteed.


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