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Ajo Mtn Drive

5 Star Route / Tucson, Arizona / Published: Dec 2020 / Directions
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Leading out! / December 11, 2020
Checking the map.
First Organ Pipe cactus at ~ mile 5.
The Diablo Mountains.
The climbing, paved sector.
Tall, tall Saguaro cactus!
The notch, near the high point of the day.
Chocolate and joy! At the Arch Canyon trailhead.
The beginning of the long, rolling descent to the start.
There are a couple of short paved sections along the way.
Ocotillo cactus.
Back onto the stick of the lollipop.
The double lane gravel road on the stick.
Gravel Girl's ride metrics.
The parking area and visitors center.
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Route:
Lollipop | 20 mi
*
Gain:
1,300 ft
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Surface:
90% gravel, 10% paved
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Technical Difficulty:
Easier
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Navigation:
Straightforward
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Locale:
Remote
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Tire Suggestion:
40 mm
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Options:
---

Don’t be a Gumby and see this national gem of a park in a car. It’s well worth the effort to drag your bike with you for this twenty-mile ride. It’s a fun loop with jaw-dropping mountain views, a natural arch, loads of wildlife, and more than a few organ pipe cactus.

And … what humored us was the mix of gravel and pavement: short stretches are paved to help you through popper climbs and over washes! Now, how friggen cool is that! And bring your phone because you will need at least 100 pictures to remind you of the beauty of this place.

Read More
Map
Brown = gravel / dirt road
Blue = single track
Red = paved road
Purple = paved bike path
GPX Download   Version 1.0
Ride Details

When We Like to Ride This

Spring through fall. The ride is at lower elevations, making it a good winter ride. Spring is beautiful when the cactus and trees are in bloom.

Terrain & Riding

The route leads out across the desolate Sonoyta Valley floor on a two-way double-wide gravel road. It is hard pack with a little washboard.(Micro-video) This is where you find plants that thrive in the hottest driest parts of the Sonoran Desert like Brittlebush and bursage / creosote bush [from Organ Pipe Cactus National Monument Brochure].

At ~ mile 2, the road continues straight but is now one-way and single lane with a bit more chunk and gnar. As you climb higher on gentle grades of 1 to 3%, big Saguaro cactus appear along with a smattering of Palo Verde and Mesquite trees.

In the wetter parts of the Sonoran Desert, usually at a slightly higher altitude than the base of the desert floor, you find plants of the Arizona Upland Community: Agave, Palo Verde trees, and organ pipe, saguaro, prickly pear, and cholla cactus. [Organ Pipe Cactus National Monument Brochure]

In the distance is Tillotson Peak to the left with the flat top and a band of color, to the right is Mt Ajo and the Ajo Mountain range.

Ajo Mtn Drive

At ~ mile 5, the first Organ Pipe cactus appear. The route follows up along Diablo creek for a bit and then climbs on pavement (Micro-video) on the steepest sections [8 to 10%], looping clockwise around the Diablo mountains. Near the high point of the day, you head directly west to the base of the Ajo Mountains, where there is a look through arch high up. (Micro-video) Just beyond this is the arch canyon trailhead with a picnic table. We took a break here— a moment to take in the views and the warmth of the winter sun.

The rest of the route is all downhill (well, almost all downhill (Micro-video) ) with just one short pavement section. You cruise through forests of saguaros with distant views to the west of the Puerto Blanco Mountains. (Micro-video) As we like to say, “Ride dirty and smile!”.

The Start

Lat / Long: 31.954269, -112.791114

Kris Eggle Visitor Center at Organ Pipe Cactus National Monument. National Park pass required, follow this link for more info.

Food & Water

  • None.
Notes & Options

Route Notes

  1. We recommend a red blinky light as there is some traffic on the loop and drivers can be a bit distracted by the views.

  2. There are a couple of short, steep pitches over 10%, but they are paved. We had about 5 vehicles pass by, and at the trailheads there were a couple of cars. Cell phone coverage is available on most of the route.

  3. It is difficult to properly classify the locale of this route as it is a National Monument and sees a fair amount of visitor traffic. It is not rural — as we typically use the rural tag for rural farm roads — and it is not really remote as it has more traffic than we usually use the remote tag for. We would call it remote light.

Route Options

An interesting option for this ride would be to do it at dusk or maybe even as a night ride. The possibilities of animal sightings, stargazing, and everything else the desert offers are exciting to us. But … go prepared!

Another route in the area to consider is Puerto Blanco Drive.

Comments

Have you ridden this route? Got a question? Join the discussion!

Ridden and Reviewed by:

KevinE

KevinE / Team Dirty Freehub

He should have “Never Stop Exploring” tattooed on his chest! He loves adventures on bikes and is a Co-Founder of Dirty Freehub.

LindaE (aka Gravel Girl)

LindaE (aka Gravel Girl) / Team Dirty Freehub

She loves a good day of gravel, like most people like a good book. She’s always amused by the outdoors and the wild adventures. Gravel Girl is a Co-Founder of Dirty Freehub.

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