Utah · Rock climbing · Sandy

Slab-sided Boulder

Slab-sided Boulder in Utah has 8 routes across 5 grades, bouldering with pads.

8 routes
V0 – V8
Bouldering

Is Slab-sided 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 Slab-sided 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 900 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.

Slab-sided Boulder is a bouldering 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. The area sits within a cluster of climbing spots, with Central Area and Cynthia's Boulder each about 0.1 mile away. The climbing here is all bouldering, and the routes range from V0 to V8 on the V scale. Eight routes are listed, with Corner the hardest at V8 and several others, including Arete and Right, at V0. That mix makes the area suitable for climbers of different skill levels. 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 and lows drop to about 15°F. The station sits nearly 950 feet below the area, so temperatures at the boulders run cooler. Tanners Flat Campground is about 0.7 mile away, and the White Pine - Snowbird Link hike is about half a mile off. Lake Lillian and Lake Florence are both within about 2 miles.

Routes (8)