Main Slab - Lower
Main Slab - Lower in California has 41 routes with sport and trad climbing.
- 41 routes
- 5.4 – 5.12-
- Trad · Sport
Best time to visit Main Slab - Lower
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
66° / 37°
Feb
66° / 38°
Mar
71° / 40°
Apr
74° / 44°
May
80° / 51°
Jun
87° / 56°
Jul
94° / 62°
Aug
95° / 62°
Sep
92° / 59°
Oct
82° / 49°
Nov
72° / 41°
Dec
65° / 37°
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at March Afb, CA, 6.2 mi away at 1,516 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Main Slab - Lower is a climbing area in Lake Perris State Recreation Area in California, managed by State Park and Recreation. It sits among a cluster of climbing spots, with Main Slab - Upper and Main Slab - The Sundeck each about 0.1 mile away, and Helios Boulder at a similar distance. That makes it easy to pair with other areas in the same part of the recreation area. The climbing here is mostly traditional, with 37 trad routes and four sport routes among the 41 listed. Grades run from 5.4 up to 5.12-, with the median around 5.9. Some of the named routes include Crater Maker (5.7, trad), Giant Step (5.10b/c, trad) and English Hanging Gardens (5.12-, trad). The sport route Last Drain to Clarksville is 5.4. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station show April highs around 74°F and October highs around 82°F, while July and August average in the low 90s.
Routes (41)
Keep exploring — more climbs worth the drive
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