Hwy 166/Silly Rock
7 sport climbing routes in California.
Is Hwy 166/Silly Rock open right now?
Alert in the area
The Forest Service lists 3 alerts for Los Padres National Forest.
Los Padres Fire Use and Firearm Restrictions
Agency alert covering Los Padres National Forest · Order 05-07-00-26-05 · USFS · Los Padres National Forest
Santa Barbara Front Country Fire Use Restrictions
Agency alert covering Los Padres National Forest · Order 05-07-5406-01 · USFS · Los Padres National Forest
West Cuesta Fire Use Restrictions
Agency alert covering Santa Lucia Ranger District · Order 05-07-53-24-19 · USFS · Santa Lucia Ranger District
As of · Source: USFS · Los Padres National Forest. Agencies don't list every closure — check before you go.
Best time to visit Hwy 166/Silly Rock
Best months: Year-round. 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
63° / 41°
8 wet
Feb
62° / 42°
8 wet
Mar
65° / 44°
8 wet
Apr
68° / 45°
5 wet
May
70° / 48°
2 wet
Jun
75° / 50°
1 wet
Jul
77° / 53°
0 wet
Aug
78° / 54°
1 wet
Sep
78° / 52°
1 wet
Oct
75° / 49°
3 wet
Nov
68° / 44°
5 wet
Dec
61° / 39°
8 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Twitchell Dam, CA, 15.1 mi away at 582 ft. The station sits about 1,300 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Hwy 166/Silly Rock is a climbing area in the Santa Lucia Ranger District of Los Padres National Forest in California, managed by the Forest Service. The name comes from the highway and the Silly Rock climbing spot, and it sits in a cluster of bouldering and wall areas. The weather here is mild year-round. Typical averages from a nearby weather station at Twitchell Dam show the warmest stretch from June through September, with highs around 75 to 78°F and almost no rain. Winter runs cooler, with highs in the low 60s and about eight wet days a month from December through March. Several climbing areas lie close by. Big Rocks is just 0.2 miles away, and Doom Wall, Mr. Lees Greater Hong Kong and the Sea of Love Wall are each about 0.6 miles off. For a walk, Gifford is roughly 2.6 miles away.
Keep exploring — more climbs worth the drive
Grime Dog Wall
~54 min drive
Grime Dog Wall in California has 6 routes with 5 difficulty grades, offering bouldering and sport climbing.
Chlorissa
~59 min drive
Chlorissa is a California climbing area with 10 routes on 7 difficulty grades.
P-Wall
~59 min drive
P-Wall in California has 39 climbing routes across 16 difficulty grades.
Hidden Gully
~60 min drive
Hidden Gully in California has 6 routes across 6 grades, offering mixed, sport, and trad climbing.
Cabrillo Peak
~1h 13m drive
Cabrillo Peak in California has 12 climbing routes with 11 difficulty grades.
Rock Land
~1h 13m drive
Rock Land in California has 13 routes across 9 grades with mixed, sport, and trad climbing.
Photo: Ken Lund, CC BY-SA 2.0 (via Flickr)Morro Bay Harbor
~1h 18m drive
Morro Bay Harbor, California climbing area with 2 routes.
Photo: vonguard, CC BY-SA 2.0 (via Flickr)Breakwater Boulder
~1h 18m drive
Breakwater Boulder in California has 6 bouldering routes across 5 grades.
Kelly's Hill
~1h 18m drive
Kelly's Hill in California has 8 bouldering routes with 6 difficulty grades.
Photo: DieselDemon, CC BY 2.0 (via Flickr)Top of the World
~1h 18m drive
Top of the World in California has 21 bouldering routes across 8 grades.