Sanborn County Park (Indian Rock Side)
12-route bouldering crag in California with 9 difficulty grades.
Photo: arnybo, CC BY-SA 2.0 (via Flickr)- 12 routes
- V0 – V9
- Bouldering
Best time to visit Sanborn County Park (Indian Rock Side)
Best months: April–November. 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.
Jan
55° / 41°
14 wet
Feb
55° / 40°
14 wet
Mar
58° / 41°
13 wet
Apr
62° / 43°
10 wet
May
67° / 47°
7 wet
Jun
75° / 52°
3 wet
Jul
81° / 58°
1 wet
Aug
81° / 59°
1 wet
Sep
79° / 57°
2 wet
Oct
71° / 52°
6 wet
Nov
60° / 44°
11 wet
Dec
54° / 40°
15 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Skyline Ridge Preserve, CA, 7.6 mi away at 2,270 ft. The station sits about 800 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.
Sanborn County Park (Indian Rock Side) is a bouldering area in Sanborn County Park, California, on county land. It sits among several other climbing spots, including Hash Rock, Clamshell Boulder and Lower Indian Rock, all about 0.1 mile away, and Castle Rock Trail, a hike about 0.2 mile off. The park's bouldering is all on the boulder style, with 12 routes ranging from V0 to V9. The easiest is Left Arete at V0, and the hardest is Sharma Arete at V9. The median grade is V3, so the area offers a range from beginner to advanced bouldering. Summer is the driest and warmest time to visit. Typical averages from a nearby weather station show July and August highs around 81°F with only about one wet day a month, while winter brings highs in the mid-50s and rain on roughly 14 days a month. That station sits about 790 feet lower than the park, so temperatures here run cooler.
Routes (12)
Arrowhead Boulder(3)
Office, The(2)
Red Knobs Boulder(1)
Roadside Boulder(2)
Roof top boulder(1)
Thee Classic(3)
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