Harrison Boulder
Harrison Boulder is a California climbing area with 8 routes on bouldering pads.
- 8 routes
- V0 – V5
- Bouldering
Best time to visit Harrison Boulder
Best months: October–May. 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
70° / 44°
7 wet
Feb
70° / 45°
7 wet
Mar
72° / 47°
6 wet
Apr
75° / 50°
4 wet
May
80° / 55°
2 wet
Jun
87° / 58°
1 wet
Jul
94° / 63°
1 wet
Aug
97° / 64°
0 wet
Sep
93° / 61°
1 wet
Oct
82° / 55°
2 wet
Nov
76° / 47°
3 wet
Dec
69° / 43°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Riverside Citrus Exp, CA, 2.2 mi away at 986 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Harrison Boulder is a bouldering area in Mount Rubidoux Park, a city-managed park in California. The boulders sit among several other climbing spots, including the Half Dome Boulder and the Joe Brown and Half Dome Area, all about 0.1 mile away. The area is built around boulders rather than traditional rock faces, and it carries a range of grades across the V scale and the YDS scale. Eight boulder problems are listed, with routes like Problem B at V0 and The Mug at V5. The YDS grades run from 5.10a to 5.10b. Spring and fall are the most comfortable times to go. Typical averages from a nearby weather station show May highs around 80°F with lows near 55°F, and November highs around 76°F. Summer is hot, with August highs near 97°F.
Keep exploring — more climbs worth the drive
Photo: nccmrm97, CC BY-SA 2.0 (via Flickr)Upper Accomazzo Boulders
~1 min drive
Upper Accomazzo Boulders in California has 5 bouldering routes across 4 grades.
Photo: nccmrm97, CC BY-SA 2.0 (via Flickr)John Long Boulder
~1 min drive
John Long Boulder in California has 6 bouldering routes with 6 difficulty grades.
Photo: nccmrm97, CC BY-SA 2.0 (via Flickr)Hardy Boy Area
~1 min drive
Hardy Boy Area in California has 6 routes with 6 difficulty grades, offering bouldering and sport climbing.
Joe Brown and Half Dome Area
~0 min drive
Joe Brown and Half Dome Area is a California bouldering crag with 5 routes across 4 grades.
Half Dome Boulder
~0 min drive
Half Dome Boulder in California has 8 routes across 7 grades, offering bouldering pads and sport climbing.
Joe Brown
~0 min drive
Joe Brown in California has 10 routes across 9 grades, offering bouldering and sport climbing.
Cornerstone Boulder
~0 min drive
Cornerstone Boulder in California has 5 bouldering routes with pads.
Borson's Wall
~0 min drive
Borson's Wall in California has 18 climbing routes across 13 grades, offering bouldering and sport styles.
Island Wall
~0 min drive
Island Wall in California has 31 climbing routes across 19 difficulty grades.
Turtle Dome
~0 min drive
Turtle Dome in California has 6 bouldering routes across 4 grades.
