Colorado · Rock climbing · Lyons

The Acrophile

Acrophile, Colorado climbing crag with 21 routes, 12 grades, mixed and trad.

21 routes
5.4 – 5.11c
Trad · Mixed

Is Acrophile, The open right now?

Alert in the area

The Forest Service lists 3 alerts for Arapaho and Roosevelt National Forests.

As of · Source: USFS · Arapaho and Roosevelt National Forests. Agencies don't list every closure — check before you go.

Best time to visit The Acrophile

Best months: April–June and September–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

    47° / 21°

    6 wet

  2. Feb

    48° / 22°

    7 wet

  3. Mar

    57° / 29°

    8 wet

  4. Apr

    63° / 34°

    10 wet

  5. May

    71° / 43°

    12 wet

  6. Jun

    83° / 51°

    10 wet

  7. Jul

    88° / 57°

    11 wet

  8. Aug

    86° / 55°

    10 wet

  9. Sep

    79° / 48°

    8 wet

  10. Oct

    66° / 37°

    7 wet

  11. Nov

    54° / 28°

    6 wet

  12. Dec

    46° / 21°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boulder, CO, 13.9 mi away at 5,484 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

The Acrophile is a climbing area in the Boulder Ranger District of the Arapaho and Roosevelt National Forests in Colorado, managed by the Forest Service. Late spring and early fall tend to be the most comfortable times to visit. Typical averages from a nearby weather station in Boulder run to highs around 71°F in May and 79°F in September, with July peaking near 88°F and winter highs in the mid-40s. The area sits among several other climbing spots and trails, all within about a tenth of a mile. The Spire, Pantheon and Hideaway Dome are nearby climbing areas, and the Coffintop hike starts close by. For a longer outing, Button Rock Trail is about 2 miles away.