California · Rock climbing · Idyllwild

Lobotomy Boulder

Lobotomy Boulder in California has 5 bouldering routes across 3 grades.

Lobotomy BoulderPhoto: sergei.gussev, CC BY 2.0 (via Flickr)
5 routes
V0+ – V1
Bouldering

Is Lobotomy Boulder open right now?

Alert in the area

The Forest Service lists 2 alerts for San Bernardino National Forest.

As of · Source: USFS · San Bernardino National Forest. Agencies don't list every closure — check before you go.

Best time to visit Lobotomy Boulder

Best months: April–July and September–November. 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

    55° / 31°

    7 wet · 2 snow

  2. Feb

    54° / 30°

    7 wet · 3 snow

  3. Mar

    59° / 32°

    6 wet · 2 snow

  4. Apr

    64° / 35°

    4 wet · 1 snow

  5. May

    71° / 41°

    2 wet

  6. Jun

    80° / 48°

    1 wet

  7. Jul

    85° / 55°

    2 wet

  8. Aug

    86° / 55°

    3 wet

  9. Sep

    81° / 50°

    2 wet

  10. Oct

    72° / 42°

    2 wet

  11. Nov

    62° / 35°

    4 wet · 1 snow

  12. Dec

    54° / 30°

    6 wet · 2 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Idyllwild Fire Dept, CA, 1.5 mi away at 5,380 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Lobotomy Boulder is a bouldering area in Idyllwild Park, on county land within the San Jacinto Ranger District of San Bernardino National Forest in California. It sits among a cluster of climbing and hiking spots, with Hillside Trail and Meteorite Boulder each about 0.1 mile away. The area has five bouldering routes, all rated V0+ or V1 on the V scale. The Lobotomy boulder is the namesake, and the other routes are Problem 1, Sketch Step and Tiptoe Dancer. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Idyllwild run from highs around 71°F in May to 72°F in October, with winter bringing highs in the mid-50s and a few snow days a month from December through February. Summit Trail is 0.3 mile away, and Deer Springs is 0.7 mile away. For an overnight stay, Fern Basin campground is about 3 miles off, and Boulder Basin campground is about 6 miles away.

Keep exploring — more climbs worth the drive