California · Rock climbing · Saratoga

Tree-In-The-Wall Boulder

Tree-In-The-Wall Boulder is a 12-route bouldering crag in California with 9 distinct difficulty grades.

12 routes

V0 – V5

Bouldering

Best time to visit Tree-In-The-Wall Boulder

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, 9.1 mi away at 2,270 ft. The station sits about 600 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.

Tree-In-The-Wall Boulder is a bouldering area in Sanborn County Park, on county land in California. It sits among a cluster of climbing spots, with Drunk as a Skunk Boulder about 0.1 mile away and Biddles and Sunnyvale Mountain each about 0.2 mile off. The Skyline Trail passes within a quarter mile. The area is a bouldering destination, with 12 routes all rated on the V scale. The grades run from V0 to V5, with the median at V3. The easiest is The Flake at V0, and the hardest is Stretch Armstrong at V5. The routes are all boulders, so there is no climbing on rock faces here. 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 645 feet lower than the boulders, so temperatures at the climbing area run cooler. For a change from bouldering, the John Nicholas Trail and Peterson Trail are both about 0.7 mile away. Paddlers can find the San Lorenzo River roughly 8.7 miles off.