California · Rock climbing · Lake Arrowhead

Boiler Pinnacle

6 routes at Boiler Pinnacle in California span 5 difficulty grades, offering sport and trad climbing.

6 routes
5.7 – 5.10b
Trad · Sport

Is Boiler Pinnacle open right now?

Closure in the area

There's a closure order in Mountaintop Ranger District. It doesn't name Boiler Pinnacle, so check the source for the area it covers.

As of · Source: USFS · Mountaintop Ranger District. Agencies don't list every closure — check before you go.

Best time to visit Boiler Pinnacle

Best months: April–October. 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

    44° / 29°

    6 wet · 1 snow

  2. Feb

    45° / 30°

    6 wet · 1 snow

  3. Mar

    52° / 32°

    6 wet · 1 snow

  4. Apr

    60° / 36°

    4 wet · 1 snow

  5. May

    67° / 41°

    2 wet

  6. Jun

    76° / 49°

    1 wet

  7. Jul

    81° / 57°

    1 wet

  8. Aug

    82° / 57°

    1 wet

  9. Sep

    74° / 52°

    1 wet

  10. Oct

    63° / 43°

    2 wet

  11. Nov

    52° / 34°

    3 wet

  12. Dec

    43° / 29°

    5 wet · 1 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Lake Arrowhead, CA, 4.5 mi away at 5,205 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Boiler Pinnacle is a climbing area in the Mountaintop Ranger District of San Bernardino National Forest in California, managed by the Forest Service. It sits among a cluster of pinnacles, with Main Ridge Pinnacles and Trading Post Pinnacle each about 0.1 mile away. The climbing here is a mix of trad and sport routes, with six routes in total. The grades run from 5.7 to 5.10b, and the hardest is Making it Boil, a sport route at 5.10b. Among the trad routes are Bloody Mary at 5.7 and J.B. at 5.10a. For timing, late spring and early fall are the most comfortable. Typical averages from the Lake Arrowhead weather station, about 4.5 miles away, show May highs around 67°F and September highs around 74°F, with only a day or two of rain each month. Winter brings highs in the low 40s and a few snow days a month. Nearby, the Pinnacles hike is about 0.9 mile away and the Metate hike about 1.1 mile. For an overnight stay, North Shore Campground is about 4.1 miles off, and Lake Arrowhead - Green Valley Lake Recreation Area is about 4.8 miles away.

Routes (6)

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