California · Rock climbing · Crowley Lake

Sloper Boulder

Sloper Boulder in California has 6 bouldering routes across 5 grades.

6 routes
V2 – V7
Bouldering

Is Sloper Boulder 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 Sloper Boulder

Best months: May–September. 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° / 17°

  2. Feb

    41° / 18°

  3. Mar

    45° / 22°

  4. Apr

    51° / 27°

  5. May

    60° / 35°

  6. Jun

    70° / 42°

  7. Jul

    78° / 49°

  8. Aug

    77° / 47°

  9. Sep

    71° / 40°

  10. Oct

    61° / 30°

  11. Nov

    49° / 23°

  12. Dec

    41° / 17°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Mammoth Lakes Rs, CA, 16.6 mi away at 7,804 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.

Sloper Boulder is a bouldering area in the White Mountain Ranger District of Inyo National Forest in California, managed by the Forest Service. It sits among a cluster of climbing boulders, with The Boy Named Sue Boulder and Clearcut Boulder each about 0.1 mile away. The boulders here sit in a range of grades, from V2 up to V7. Six routes are listed, all in the bouldering style. Brochachmo and Morechachmo are both V3-4, and Eric in an Easy Chair is the hardest at V7. The area is a compact spot for climbers who want to link several boulders in a short stretch. Summer is the most comfortable time to visit. Typical averages from a nearby weather station at Mammoth Lakes show July highs around 78°F with lows near 49°F. That station sits about 736 feet lower than the boulders, so expect it to run a little cooler on the rock. Big Meadow Campground is about 0.2 mile away, and Iris Meadow Campground is about 0.6 mile away. Upper Rock Creek Canyon Trail is about 1.1 mile away for a longer outing.

Routes (6)

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