California · Rock climbing · Mammoth Lakes

Warming Wall

Warming Wall in California has 24 climbing routes with 14 difficulty grades, offering sport and trad climbing.

24 routes
5.4 – 5.12
Sport · Trad

Is Warming Wall open right now?

Alert in the area

The Forest Service lists 4 alerts for Inyo National Forest.

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

Best time to visit Warming Wall

Best months: May–September. 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

    41° / 17°

  2. Feb

    41° / 18°

  3. Mar

    45° / 22°

  4. Apr

    51° / 27°

  5. May

    60° / 35°

  6. Jun

    70° / 42°

  7. Jul

    78° / 49°

  8. Aug

    77° / 47°

  9. Sep

    71° / 40°

  10. Oct

    61° / 30°

  11. Nov

    49° / 23°

  12. Dec

    41° / 17°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Mammoth Lakes Rs, CA, 2.3 mi away at 7,804 ft. The station sits about 600 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Warming Wall is a climbing area in the Mammoth Ranger District of Inyo National Forest in California, managed by the Forest Service. It sits among a cluster of trails and camps, about 2 miles from Twin Lakes Campground and about 2.5 miles from the Student Boulder and College Boulder climbing areas. The closest neighbors are the Mountain View Mtn. Bike hike, 0.3 miles away, and the Earthquake Fault Vis mountain bike route, 0.5 miles away. Summer is the most comfortable time to visit. Typical averages from a nearby weather station in Mammoth Lakes, about 2.3 miles away, run from highs of 78°F in July to 71°F in September, with lows in the 40s. That station sits roughly 626 feet lower than the wall, so temperatures at the wall run a bit cooler. The area has 24 routes, mostly sport (21) with a few trad (3). The grades range from 5.4 to 5.12, with a median of 5.10b. Some of the more notable routes are Global Warming (5.4, trad), Warming Trend (5.10a, sport) and Kyoto Protocol (5.10d, sport).

Routes (24)

[Redacted]FA: Jeff Follett, Ian Jewell, 20045.10aDogs on a LeashFA: 20075.10aFaulty BreakFA: Malcolm Jolly, Meri Jolley, Gregg Davis, Cynthia Dayhoff, 19895.10aHot Flash5.10aWarming TrendFA: Malcolm Jolly, Mark Ledel, 19895.10aDodge BallFA: Jeff Follett, 20055.10bGhetto Blaster5.10bGreenhouse EffectFA: Malcolm Jolly, Mark Ledel, 19895.10cOh ZoneFA: Malcolm Jolly, Meri Jolley, 19895.10cKyoto ProtocolFA: Euan Cameron and Julie Wright, 9th May 20095.10dEl NinoFA: Malcolm Jolly, Meri Jolley, Vivian Farsworth, 19895.11aFlakes - Who Needs Them?FA: Euan Cameron, Dan Lautzenheiser, 12th June 20115.11aHeat VampireFA: Mark Ledel, Malcolm Jolly, 19895.11aJam ItFA: Malcolm Jolly, Meri Jolley, 19895.11bNuclear WinterFA: Brian Postlethwait, Barry Oswick, Oct 19995.11bBanana BoyFA: Jeff Follett, Ian Jewell, 20045.11b/cOne Eyed JackFA: Jeff Follett, Ian Jewell, 20055.11b/cTittytwisterFA: Jeff Follett, Dirk Addis5.11cHipster DufusFA: Jeff Follett, 20055.12Global WarmingFA: Donette & Todd Swain 08-22-20055.4Bush JrFA: Jeff Follett, Ian Jewell, 20045.7Warming Wall Crack5.8The Moroccan wizardFA: Alon Peretz (let me know if you climbed before)5.8+Inconvenient Truth5.9+

Keep exploring — more climbs worth the drive

Sister BoulderPhoto: inkknife_2000 (14 million views), CC BY-SA 2.0 (via Flickr)

Sister Boulder

~5 min drive

8 bouldering routes at Sister Boulder in California, grades 5.10a to 5.12c.

Horseshoe SlabsPhoto: inkknife_2000 (14 million views), CC BY-SA 2.0 (via Flickr)

Horseshoe Slabs

~5 min drive

16-route climbing area in California with mixed, sport, and trad styles.

Horseshoe Slabs BoulderPhoto: inkknife_2000 (7.5 million views +), CC BY-SA 2.0 (via Wikimedia Commons)

Horseshoe Slabs Boulder

~5 min drive

Horseshoe Slabs Boulder has 8 bouldering routes in California.

Spring WallPhoto: inkknife_2000 (14 million views), CC BY-SA 2.0 (via Flickr)

Spring Wall

~6 min drive

13 routes at Spring Wall in California range across 10 difficulty grades.

Labor WallPhoto: mjhbower, CC BY-SA 2.0 (via Flickr)

Labor Wall

~6 min drive

Labor Wall in California has 5 sport routes on 4 difficulty grades.

Mammoth CrestPhoto: mjhbower, CC BY-SA 2.0 (via Flickr)

Mammoth Crest

~6 min drive

Mammoth Crest in California offers 18 climbing routes across 9 difficulty grades with alpine no fixed protection.

T J SlabsPhoto: inkknife_2000 (14 million views), CC BY-SA 2.0 (via Flickr)

T J Slabs

~6 min drive

T J Slabs in California has 6 bouldering routes with 5 difficulty grades.

T J LakePhoto: mjhbower, CC BY-SA 2.0 (via Flickr)

T J Lake

~7 min drive

T J Lake is a California climbing area with 4 routes across 4 grades.

Student Boulder

~4 min drive

Student Boulder in California has 6 bouldering routes across 5 grades.

College Boulder

~4 min drive

College Boulder in California has 8 bouldering routes across 7 grades.