California · Rock climbing · Crowley Lake

Thin Fin

Mid-range climb among nine routes at Sugar Mountain.

5.9+
grade
Trad Gear
style

Is Thin Fin 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 Thin Fin

Best months: June–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° / 13°

  2. Feb

    38° / 12°

  3. Mar

    42° / 15°

  4. Apr

    45° / 22°

  5. May

    54° / 27°

  6. Jun

    65° / 33°

  7. Jul

    71° / 38°

  8. Aug

    70° / 36°

  9. Sep

    65° / 32°

  10. Oct

    57° / 26°

  11. Nov

    47° / 20°

  12. Dec

    40° / 12°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Tuolumne Meadows Rs, CA, 42.2 mi away at 8,694 ft. The station sits about 1,100 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.

One of nine routes catalogued at Sugar Mountain, this climb sits in the middle of the crag's range between 5.7 and 5.11+.