Colorado · Bouldering · Aspen

Power of 11

The hardest problem catalogued at Ivory Field.

V10-11
grade
Bouldering Pads
style

Is Power of 11 open right now?

Closure in the area

There's a closure order in White River National Forest. It doesn't name Power of 11, so check the source for the area it covers (2 listed).

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

Best time to visit Power of 11

Best months: June–August. 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

    31° / 3°

    8 wet

  2. Feb

    33° / 3°

    8 wet

  3. Mar

    39° / 9°

    8 wet

  4. Apr

    44° / 18°

    8 wet

  5. May

    55° / 27°

    9 wet

  6. Jun

    68° / 34°

    9 wet

  7. Jul

    73° / 39°

    12 wet

  8. Aug

    70° / 38°

    12 wet

  9. Sep

    62° / 31°

    8 wet

  10. Oct

    51° / 23°

    6 wet

  11. Nov

    39° / 14°

    7 wet

  12. Dec

    31° / 6°

    7 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Sugarloaf Rsvr, CO, 19.8 mi away at 9,738 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

One of the most challenging boulder problems at Ivory Field, representing the upper end of the grade spectrum among the five climbs catalogued at this Colorado crag.