Jasper Boulders

Jasper BouldersStatus: Open
Land Ownership: Anza Borrego Desert State Park
Access Issues: None
Climbing: Desert Bouldering


Discovered a few years ago, this local bouldering haven is already home to hundreds of problems, most of which have seen less than a hand full of ascents, on desert granite of generally good quality. There’s no guidebook and no real trails (only equestrian trails from locals riding through the area and game trails), so consider this adventure climbing. Grab your pad, a stiff plastic brush to clean holds, and get out there and climb!

When to Climb:

Fall through Spring is best at this 4,000′ high-desert crag. Winter days can sometimes be downright cold, especially if it’s windy, but some of the boulders get a lot of sun and are a bit sheltered from the wind.


From San Diego, take the shortest route to Ramona, and head East on Hwy 78. In Santa Ysabel, turn Left onto Hwy 79 toward Warner Springs. Just before Warner Springs, go East on Hwy S2, then turn North onto Hwy S22 toward Ranchita. The Jasper Trail turnoff is 1.75mi past the Ranchita Store, and about a quarter mile past the Anza Borrego Desert State Park sign. The turn onto the dirt road is easy to miss! From the turn off of the highway, follow Jasper Trail past a couple of small spur roads and the Culp Valley Road intersection to the North parking area (2 miles from the highway). Cars with a bit of ground clearance are advised, as the road gets rutted after heavy rains and the center burm/brush may be a clearance issue for small cars.