Offroad Driving
and OHV Areas



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Geology Tour / Berdoo Canyon Road

Trailhead Access: From inside Joshua Tree National Park, take the main park road to the start coordinates listed below, about halfway between the Ryan Mountain and Jumbo Rocks campgrounds.
Total Distance: 22.96 miles
Elevation Gain/loss: Low point: 704 feet, High point: 4431 feet
Starts at: 34°00'22"N, 116°05'06"W
Ends at: 33°48'00"N, 116°11'07"W
Comments: This trail starts as an easy but sandy dirt road headed south off the paved main park road. The first third of the trail is the Geology Tour Road and is maintained by the Park Service. After about 7.8 miles at 33.91048/116.0576, take the right fork and proceed south. From here onward, the road is not maintained. Keep right at all further forks and you will begin to curve southwest and enter Berdoo Canyon. There may be some moderately difficult bits of sand and obstacles here and there, but I generally call this road 'moderate'. Eventually you will reach paved Dillion Road outside the south end of the park. SoCalCamping.com rates this trail as moderate.

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The information on this page is generally reliable but not guaranteed, so use this guide for reference only. Since road and trail conditions are subject to constant change, use this information at your own risk. Be sure your insurance is up to date and carry all necessary supplies.