California · Rock climbing · Big Meadow

Main Formation North Wall

Main Formation North Wall in California has 10 bouldering routes across 4 grades.

10 routes
V0 – V1
Bouldering

Is Main Formation North Wall open right now?

Closure in the area

There's a closure order in Stanislaus National Forest. It doesn't name Main Formation North Wall, so check the source for the area it covers (2 listed).

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

Best time to visit Main Formation North Wall

Best months: May–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

    43° / 18°

    9 wet

  2. Feb

    43° / 19°

    9 wet

  3. Mar

    48° / 24°

    10 wet

  4. Apr

    53° / 28°

    8 wet

  5. May

    62° / 33°

    7 wet

  6. Jun

    72° / 38°

    3 wet

  7. Jul

    80° / 43°

    2 wet

  8. Aug

    80° / 41°

    2 wet

  9. Sep

    73° / 35°

    3 wet

  10. Oct

    62° / 29°

    5 wet

  11. Nov

    51° / 23°

    7 wet

  12. Dec

    43° / 18°

    10 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at South Lake Tahoe Ap, CA, 33.9 mi away at 6,314 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Main Formation North Wall is a bouldering area in the Calaveras Ranger District of Stanislaus National Forest in California, managed by the Forest Service. It sits within a cluster of climbing and camping spots, with Main Formation Upper Wall and Big Meadow Campground each about 0.1 mile away. The area is a bouldering destination, with 10 routes all rated V0 or V1 on the V scale. Most of them are V0, and the hardest is V1. The routes include Angular, Dermal Destruction and Edges, with Moss Boss at V1. Summer is the most comfortable time to visit. Typical averages from a nearby weather station at South Lake Tahoe show July and August highs around 80°F with lows in the low 40s and only about two wet days a month. Winter is much colder, with highs in the low 40s and lows near 18°F. Big Meadow (Stanislaus National Forest) campground is about 0.2 mile away, and Sand Flat campground is about 1.5 miles off. The 7N01G SNOW TRAIL hike is about 2 miles away, and the North Fork Stanislaus River offers canoeing about 4.9 miles away.

Routes (10)