California · Rock climbing · Lee Vining

Aspen Boulder

Aspen Boulder in California has 8 bouldering routes with 8 distinct difficulty grades.

Photo: naserke, CC BY-SA 2.0 (via Flickr)

8 routes

V0- – V8

Bouldering

Is Aspen Boulder open right now?

Alert in the area

The Forest Service lists 4 alerts for Inyo National Forest.

Stage 1 Fire Restrictions in Effect
Agency alert covering Inyo National Forest · Order 05-04-50-26-23 · USFS · Inyo National Forest
Help Halt Golden Mussel Invasion
Agency alert covering Inyo National Forest · USFS · Inyo National Forest
Ansel Adams and John Muir Wilderness Campfire Restrictions
Agency alert covering Inyo National Forest · Order 05-04-50-25-04 · USFS · Inyo National Forest
Golden Trout and Hoover Wilderness Campfire Restrictions
Agency alert covering Inyo National Forest · Order 05-04-50-25-05 · USFS · Inyo National Forest

As of Oct 23, 7:30 pm PDT · Source: USFS · Inyo National Forest. Agencies don't list every closure — check before you go.

Best time to visit Aspen Boulder

Best months: April–October. 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
41° / 21°
6 wet
Feb
44° / 23°
7 wet
Mar
51° / 28°
6 wet
Apr
58° / 32°
4 wet
May
66° / 40°
4 wet
Jun
77° / 47°
3 wet
Jul
84° / 54°
3 wet
Aug
83° / 52°
3 wet
Sep
76° / 45°
2 wet
Oct
65° / 36°
3 wet
Nov
53° / 28°
4 wet
Dec
42° / 22°
6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Lee Vining, CA, 3.7 mi away at 6,797 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.

Aspen Boulder is a bouldering area in the Mono Lake Ranger District of Inyo National Forest in California, managed by the Forest Service. It sits about 0.2 miles from Aspen Campground (D51), making it an easy pairing for climbers who want to camp nearby. The area holds 10 bouldering problems, all rated on the V scale from V0- to V8. The easiest are Problem E (V0-) and Problem B (V1), while Adam's Arete is the hardest at V8. The median grade is V3, so the range runs from beginner to advanced. For comfortable weather, late spring and early fall are the sweet spots. Typical averages from the Lee Vining weather station, about 3.7 miles away, show May highs around 66°F and September highs around 76°F, with lows in the 40s. That station sits roughly 700 feet lower than the boulders, so temperatures at the crag run cooler. Other climbing is close by at Little Arete Boulder and Roadside Boulder, both within a mile. Big Bend Campground is also about a mile away.