California · Rock climbing · Pinecrest

Pump Rocks

Pump Rocks in California has 5 bouldering routes across 4 grades.

5 routes
V2+ – V7
Bouldering

Is Pump Rocks open right now?

Closure in the area

There's a closure order in Stanislaus National Forest. It doesn't name Pump Rocks, 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 Pump Rocks

Best months: May–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

    45° / 30°

    11 wet

  2. Feb

    46° / 30°

    11 wet

  3. Mar

    49° / 32°

    11 wet

  4. Apr

    54° / 35°

    8 wet

  5. May

    63° / 42°

    6 wet

  6. Jun

    73° / 49°

    2 wet

  7. Jul

    81° / 56°

    1 wet

  8. Aug

    80° / 55°

    1 wet

  9. Sep

    74° / 51°

    2 wet

  10. Oct

    64° / 43°

    4 wet

  11. Nov

    52° / 34°

    7 wet

  12. Dec

    44° / 30°

    11 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Calaveras Big Trees, CA, 20.8 mi away at 4,695 ft. The station sits about 1,300 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Pump Rocks is a climbing area in California's Stanislaus National Forest, within the Summit Ranger District. The Forest Service manages the surrounding land. The area is a boulder field, with five routes, all rated on the V scale. The grades range from V2+ to V7, and the most common climbing is at V4. The routes are Two scoops, Right Side, The Pump, Kent's Ramp and The Ramp. Summer is the most comfortable time to climb. Typical averages from a nearby weather station show July highs around 81°F with lows near 56°F and only about one wet day, while winter highs sit in the mid-40s. Donnell Reservoir and the Donnell Vista Parking Lot are both about 0.9 miles away, and the Middle Fork Stanislaus River lies about 1.1 miles off. For camping, Niagra Creek is roughly 1.1 miles away.

Routes (5)

Keep exploring — more climbs worth the drive

Donnell Vista Parking LotPhoto: RuggyBearLA, CC BY 2.0 (via Flickr)

Donnell Vista Parking Lot

~2 min drive

Donnell Vista Parking Lot is a California climbing crag with 7 routes.

Columns of the GiantsPhoto: GSEC, CC BY 2.0 (via Flickr)

Columns of the Giants

~13 min drive

Columns of the Giants in California has 2 climbing routes.

Pinecrest LakePhoto: A Silly Person, CC BY-SA 2.0 (via Flickr)

Pinecrest Lake

~15 min drive

Pinecrest Lake is a California climbing area with 2 routes and 2 difficulty grades.

Chipmunk FlatPhoto: RuggyBearLA, CC BY 2.0 (via Flickr)

Chipmunk Flat

~24 min drive

Chipmunk Flat in California has 11 climbing routes across 11 grades, offering bouldering, sport, and trad.

LtaPhoto: Mikeiamunion21, CC BY-SA 3.0 (via Wikimedia Commons)

Lta

~36 min drive

LTA in California offers 3 climbing routes with mixed and sport styles.

Road 5N06 Area

~2 min drive

Road 5N06 Area in California has 3 climbing routes across 3 grades.

Upper Quarry

~2 min drive

Upper Quarry in California has 9 climbing routes across 7 grades, offering sport and trad options.

Spicer Reservoir

~11 min drive

15 climbing routes at Spicer Reservoir in California, 9 difficulty grades.

Bear Valley

~14 min drive

Bear Valley is a bouldering area in California with 1 route.

Other Side of the River Wall

~15 min drive

Other Side of the River Wall in California has 20 bouldering routes across 10 grades.