Utah · Rock climbing · Sandy

Cynthia's Boulder

Cynthia's Boulder in Utah has 12 bouldering routes with 8 difficulty grades.

12 routes
V1 – V9
Bouldering

Is Cynthia's Boulder open right now?

No closures listed

The Forest Service lists no closures for Uinta-Wasatch-Cache National Forest.

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

Best time to visit Cynthia's Boulder

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

    31° / 15°

    14 wet

  2. Feb

    31° / 15°

    13 wet

  3. Mar

    37° / 20°

    13 wet

  4. Apr

    42° / 25°

    12 wet

  5. May

    53° / 33°

    10 wet

  6. Jun

    64° / 42°

    7 wet

  7. Jul

    73° / 50°

    7 wet

  8. Aug

    71° / 49°

    9 wet

  9. Sep

    62° / 41°

    9 wet

  10. Oct

    49° / 31°

    9 wet

  11. Nov

    37° / 21°

    11 wet

  12. Dec

    30° / 15°

    14 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Alta, UT, 2.9 mi away at 8,710 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.

Cynthia's Boulder is a climbing area in the Twin Peaks Wilderness, part of the Salt Lake Ranger District of the Uinta-Wasatch-Cache National Forest in Utah. The Forest Service manages the land. Summer is the most comfortable time to visit. Typical averages from a nearby weather station in Alta show July highs around 73°F with lows near 50°F, while winter highs stay around 30°F. The Central Area and Slab-sided Boulder climbing areas sit about 0.1 mile away. Tanners Flat Campground is about 0.7 mile off, and the White Pine Trail is about 0.8 mile away.

Routes (12)