California · Rock climbing · June Lake

Aspen boulders

5 bouldering routes at Aspen boulders in California.

5 routes
V1+ – V3-4
Bouldering

Is Aspen boulders open right now?

Alert in the area

The Forest Service lists 4 alerts for Inyo National Forest.

As of · Source: USFS · Inyo National Forest. Agencies don't list every closure — check before you go.

Best time to visit Aspen boulders

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.

  1. Jan

    41° / 21°

    6 wet

  2. Feb

    44° / 23°

    7 wet

  3. Mar

    51° / 28°

    6 wet

  4. Apr

    58° / 32°

    4 wet

  5. May

    66° / 40°

    4 wet

  6. Jun

    77° / 47°

    3 wet

  7. Jul

    84° / 54°

    3 wet

  8. Aug

    83° / 52°

    3 wet

  9. Sep

    76° / 45°

    2 wet

  10. Oct

    65° / 36°

    3 wet

  11. Nov

    53° / 28°

    4 wet

  12. Dec

    42° / 22°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Lee Vining, CA, 12.7 mi away at 6,797 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Aspen boulders is a bouldering area in the Mono Lake Ranger District of Inyo National Forest in California, managed by the Forest Service. It sits among a cluster of climbing areas and trails, with Silver Lake Campground and the June Lake Area about a mile away. The boulders are a small, compact set of problems, with five routes all rated between V1+ and V3-4 on the V scale. The easiest are Crimp face and Rail slide, both V1+, and the hardest is Unknown at V3-4. All are boulders, and the area is best suited to climbers who want a short session on a single crag. Summer is the most comfortable time to visit. Typical averages from the nearby Lee Vining weather station show July highs around 84°F with lows near 54°F, while winter highs stay in the low 40s. The station sits about 440 feet lower than the boulders, so temperatures up high run cooler. The closest neighbors are the Silver Lake Horse Trail, 0.2 miles away, and the June Lake Area, 0.4 miles away. Silver Lake Campground is 0.8 miles off, and the Yost Creek Trail is 0.8 miles away.

Routes (5)