California · Rock climbing · Desert Center

Wooly Spider Boulder

Wooly Spider Boulder in California has 6 climbing routes with 6 difficulty grades.

Photo: bobistraveling, CC BY 2.0 (via Wikimedia Commons)

6 routes

5.2 – 5.10c

Trad · Sport

Is Wooly Spider 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, 6:30 pm PDT · Source: NPS · Joshua Tree National Park. Agencies don't list every closure — check before you go.

Best time to visit Wooly Spider Boulder

Best months: October–April. 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
63° / 42°
3 wet
Feb
67° / 44°
3 wet
Mar
74° / 49°
2 wet
Apr
81° / 55°
1 wet
May
90° / 63°
1 wet
Jun
99° / 71°
0 wet
Jul
104° / 77°
2 wet
Aug
103° / 76°
2 wet
Sep
96° / 69°
2 wet
Oct
85° / 58°
1 wet
Nov
72° / 47°
1 wet
Dec
62° / 40°
2 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Twentynine Palms, CA, 11.6 mi away at 1,975 ft. The station sits about 1,600 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.

Wooly Spider Boulder is a climbing area in Joshua Tree National Park in California, managed by the National Park Service. It sits among a cluster of other climbing spots, with Stirrup Tank, Hand Grenade Corridor and Pyramid Tower and The Stirrup all about 0.1 mile away. The area is a compact boulder field with a range of routes, from easy trad climbs to a sport route and a harder trad line. The climbing here is mostly trad, with six routes in total. The grades run from 5.2 up to 5.10c, and the hardest is Black Widow. The Spider and The Fly is the only sport route, at 5.9. The area also has a few first ascents on record, including Arachnids in 1986 and The Spider and The Fly in 2005. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Twentynine Palms show March highs around 74°F and October highs around 85°F, while July and August average in the mid-100s. That station sits about 1,550 feet lower than the boulder, so temperatures up high run cooler. A fee is charged for park use. For a longer outing, the Hexehedron Main Trail is about 2.4 miles away and the Skull Rock Nature Trail about 3.4 miles. Sheep Pass Group campground is roughly 6.4 miles off.