California · Rock climbing · Placerville

Mosquito Coast

16 routes in California spanning 13 grades, bouldering pads, mixed, sport, and trad.

16 routes
5.7+ – 5.12
Trad · Mixed · Bouldering

Best time to visit Mosquito Coast

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.

  1. Jan

    57° / 34°

  2. Feb

    60° / 37°

  3. Mar

    63° / 40°

  4. Apr

    67° / 42°

  5. May

    76° / 48°

  6. Jun

    86° / 55°

  7. Jul

    94° / 61°

  8. Aug

    93° / 59°

  9. Sep

    88° / 56°

  10. Oct

    77° / 48°

  11. Nov

    64° / 40°

  12. Dec

    56° / 34°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Placerville, CA, 6.9 mi away at 1,850 ft. The station sits about 500 ft higher than this place, so expect it a little warmer here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Mosquito Coast is a climbing area in California, about 3 miles from the town of Smithflat. It's a destination for climbers, and several other trails and paddling waters lie within a short drive. Spring and fall are the most comfortable times to go. Typical averages from a nearby weather station in Placerville show May highs around 76°F and October highs around 77°F, while July and August average in the low 90s. Close by, Crosier Cutoff is about 4 miles away and One Eye Creek about 5 miles. Paddlers can head to Rock Creek, roughly 6 miles off. Climbers looking for more bouldering can try Cosumnes River Bouldering, about 9 miles away.

Routes (16)

Keep exploring — more climbs worth the drive

Cosumnes River BoulderingPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Cosumnes River Bouldering

~15 min drive

5 bouldering routes at Cosumnes River Bouldering, California.

Dinkum GulleyPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Dinkum Gulley

~15 min drive

Dinkum Gulley in California has 17 climbing routes across 15 difficulty grades, offering bouldering, mixed, sport, and trad.

Cosumnes River GorgePhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Cosumnes River Gorge

~15 min drive

Cosumnes River Gorge in California has 4 mixed and sport climbing routes across 4 grades.

Struggler CliffPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Struggler Cliff

~16 min drive

Struggler Cliff in California has 8 climbing routes with 6 difficulty grades.

Ten-Minute CliffPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Ten-Minute Cliff

~16 min drive

Ten-Minute Cliff in California has 6 routes with bouldering and mixed climbing.

Salmon BouldersPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Salmon Boulders

~16 min drive

Salmon Boulders in California has 7 bouldering routes across 4 grades.

The MermaidsPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

The Mermaids

~16 min drive

11 bouldering routes in California spanning 6 grades.

Gutenberger WallPhoto: jfdervin, CC BY-SA 2.0 (via Flickr)

Gutenberger Wall

~16 min drive

Gutenberger Wall in California has 17 climbing routes across 7 grades, offering sport and trad styles.

Main Area

~15 min drive

Main Area in California has 22 climbing routes across 14 grades.

Great Flake

~16 min drive

Great Flake in California has 5 mixed climbing routes across 3 grades.