• Activities:

    Photography, Hiking

  • Skill Level:

    Intermediate

  • Season:

    Year Round

  • Trail Type:

    Loop

  • RT Distance:

    3.6 Miles

  • Elevation Gain:

    900 Feet

Bathrooms
Easy Parking
Picnic Area
Scenic
Wildflowers
Wildlife

See spectacular views of the Sonoran Desert and Estes Canyon on this moderately strenuous hike to Bull Pasture. 

The trailhead for Estes Canyon/Bull Pasture is on the Ajo Mountain Road scenic loop. Ajo Mountain Road is a dirt, windy, sometimes steep, one way road. It is maintained so that a passenger car can drive it using caution.

The trailhead has parking for two dozen cars, bathrooms, and a small shaded picnic area. Start this hike in the morning to beat the afternoon heat, and bring twice the water you'd usually pack.

Hiking clockwise, the trail begins with a short jog around a rocky cliff to access the wide expanse of Estes Canyon. The trail traverses Estes Canyon before beginning a switchbacked climb. At the top of the switchbacks you can continue on the Estes Canyon trail to drop back down toward the car (2.5 mile loop), or continue up to Bull Pasture (do this one).

The climb to Bull Pasture is steep and often exposed to drop-offs on one side. There is a beautiful viewpoint halfway up the climb to take a break. Once rested continue the climb to the top, where you'll get spectacular views of Ajo Mountain, Estes Canyon and across the desert into Mexico.

Descend back to the Estes Canyon trail, and finish the loop back to your car.

Warning: Organ Pipe National Monument is used daily by human and drug smugglers. Signs along the trail will warn you of this. Smugglers in general want nothing to do with you, and the Border Patrol presence is heavy in this park. Stay aware of your surroundings at all times.

Pack List

  • Lots of water
  • Sunscreen
  • Snacks
  • Hat
  • Sturdy shoes
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Please respect the places you find on The Outbound.

Always practice Leave No Trace ethics on your adventures. Be aware of local regulations and don't damage these amazing places for the sake of a photograph. Learn More

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Sara Sheehy Explorer

Writer | Nomad I Adventuress | Photographer

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