California · Rock climbing · Mammoth Lakes

Sector C

Sector C is a 5-route bouldering area in California with routes spanning 5 difficulty grades.

Sector CPhoto: Ken Lund, CC BY-SA 2.0 (via Flickr)
5 routes
V0 – V2
Bouldering

Is Sector C 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 Sector C

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, 2.6 mi away at 7,804 ft. The station sits about 500 ft higher than this place, so expect it a little warmer here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Sector C is a bouldering area in the Mammoth Ranger District of Inyo National Forest, California, managed by the Forest Service. It sits among several other climbing sectors, with Sector A and Sector B both about 0.1 mile away. The area draws climbers to its close-knit cluster of boulder problems, all rated between V0- and V2 on the V scale. Summer is the most comfortable time to go. Typical July averages from a nearby weather station run about 78°F for highs and 49°F for lows, while winter highs stay around 41°F with lows near 17°F. That station sits a few hundred feet lower than the area, so temperatures on the boulders may run a little cooler. The routes listed include Problem C (V0-), Problem E (V0), Problem B (V1) and Problem A (V2), all on boulders. Valentine Lake and Indian Caves Vis, both hikes about a mile away, make good pairings, and Sherwin Creek campground is 1.4 miles off.

Routes (5)

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