California · Bouldering · Old Station

Unknown 2

Entry-level problem among twelve routes at Plum Valley.

V1
grade
Bouldering Pads
style

Is Unknown 2 open right now?

Closure in the area

There's a closure order in Lassen National Forest. It doesn't name Unknown 2, so check the source for the area it covers (2 listed).

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

Best time to visit Unknown 2

Best months: May–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° / 22°

  2. Feb

    42° / 22°

  3. Mar

    46° / 24°

  4. Apr

    50° / 27°

  5. May

    61° / 35°

  6. Jun

    70° / 41°

  7. Jul

    79° / 46°

  8. Aug

    78° / 45°

  9. Sep

    72° / 41°

  10. Oct

    59° / 33°

  11. Nov

    47° / 26°

  12. Dec

    39° / 22°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Manzanita Lake, CA, 15.6 mi away at 5,750 ft. The station sits about 1,000 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.

One of twelve boulder problems catalogued at Plum Valley, this climb sits at the entry level of the crag's V1 to V8- range.

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