California · Rock climbing · Desert Hot Springs

L. Ron Hubbard's Boulder

L. Ron Hubbard's Boulder in California has 5 bouldering routes across 4 grades.

5 routes

V0 – V0+

Bouldering

Is L. Ron Hubbard's Boulder open right now?

Alert in the area

The National Park Service lists 3 alerts for Joshua Tree National Park.

Partial Trail Closure of West Side Loop
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park
Inaccurate Third-Party Apps
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park
Oasis of Mara Trail Partial Closure
Park alert covering Joshua Tree National Park · NPS · Joshua Tree National Park

As of Oct 23, 7:30 pm PDT · Source: NPS · Joshua Tree National Park. Agencies don't list every closure — check before you go.

Best time to visit L. Ron Hubbard's Boulder

Best months: October–May. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

Jan
58° / 38°
4 wet
Feb
61° / 39°
3 wet
Mar
67° / 40°
3 wet
Apr
73° / 46°
2 wet
May
82° / 52°
1 wet
Jun
91° / 59°
0 wet
Jul
96° / 66°
2 wet
Aug
96° / 68°
2 wet
Sep
89° / 60°
2 wet
Oct
80° / 50°
1 wet
Nov
66° / 41°
2 wet
Dec
58° / 34°
4 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Yucca Valley, CA, 3.9 mi away at 3,249 ft. The station sits about 700 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

L. Ron Hubbard's Boulder is a bouldering area in Joshua Tree National Park, inside the Joshua Tree Wilderness in California. The National Park Service manages the land, and the bouldering sits within the wilderness, about 3.9 miles from the Yucca Valley weather station. The bouldering is rated easy, with all five routes falling within the V0 to V0+ range on the V scale. Three of them, Kinematics (V0-), L. Ron Hubbard's Stack of Rocks Mantle (V0) and Dianetics (V0+), were first ascended in 2019. Black Rock Canyon Bouldering lies just 0.1 mile away. Spring and fall are the most comfortable times to go. Typical averages from the Yucca Valley station show April highs around 73°F and October highs near 80°F, with summer highs climbing into the mid-90s. Black Rock Campground and Black Rock Equestrian Campground are both about 0.2 mile from the boulders, and Eureka Peak Trailhead is a similar distance. First Face is about 4.2 miles away.