California · Rock climbing · Desert Hot Springs

School Boulder

School Boulder is a California bouldering crag with 5 routes.

5 routes

V1 – V4

Bouldering

Is School 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 24, 7:00 pm PDT · Source: NPS · Joshua Tree National Park. Agencies don't list every closure — check before you go.

Best time to visit School 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, 15 mi away at 3,249 ft. The station sits about 1,000 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.

School Boulder is a bouldering area in Joshua Tree National Park in California, managed by the National Park Service. It sits among a cluster of other bouldering spots, including Snack Boulder, Triangle Boulder and The Old Woman - East Face, all within about a tenth of a mile. The Old Woman - West Face is also close by. The climbing here is all bouldering, with five routes on the V scale ranging from V1 to V4. Mantel of Authority is the easiest at V1, and Mumbles Mumblephone is the hardest at V4, with Kevin Powell listed as its first ascender. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Yucca Valley show April highs around 73°F and October highs around 80°F, while July and August average about 96°F. That station sits roughly 1,000 feet lower than the boulders, so temperatures on the rock run cooler. A fee is charged for park activities. Hidden Valley Trailhead and Echo T Trailhead are both within a mile, and Sheep Pass Group campground is about 3 miles away.