Mount San Antonio

Mount San Antonio, also known as Mount Baldy, is the highest peak in the San Gabriel Mountains, and the highest point in Los Angeles County. Mount San Antonio's sometimes snow-capped peaks are visible on clear days and dominate the view of the Los Angeles skyline. The peak is called Baldy because of the absence of trees around the summit. Mount San Antonio, along with the nearby peak known as Thunder Mountain, is currently home to the family owned and operated ski resort Mount Baldy Ski Lifts, the closest resort to Los Angeles. Hiking trails access the summit from three sides of the mountain. The "Baldy Bowl" is popular with mountaineers; sections of the Bowl are steep with slopes of 45° to 50°.

Mount San Antonio SUMMIT LOG peakery first ascent by scott

286 people report climbing or hiking to the summit, most recently on Jul 26, 2014. Below are trip reports and shared pictures from their climbs. Based on the summit log, the most popular climbing routes and hiking trails to the summit are Ski Hut Trail, Ski Hut Trail from Manker Flats and Devils Backbone Trail.

Others who’ve summited Mount San Antonio

  • pvgjosh42
  • Sunday
  • nmontelli
  • modernhiker
  • futurekings
  • tkiefer
  • rrstein82
  • hikerwiz
  • jscheingross
  • arod
  • ksboynto
  • cverner
  • lidarobinson
  • KPawley1987
  • pravinjc
  • bogdevotchka
  • FrankWorsley
  • alyssaamaee
  • brooks
  • RunningWolf
  • skitopia
  • jplyons85
  • brian
  • bkestell08
  • Zocram
  • thesearcherextraordinaire
  • kiajoy
  • Mikeluna
  • earthculturemusic
  • Betty
See more

Routes Used trails & approaches

24% Ski Hut Trail

16% Ski Hut Trail from Manker Flats

8% Devils Backbone Trail

6% devil backbone trail

6% Bear Canyon Trail

5% Devils backbone Trail

4% Devil's Backbone Trail

3% Register Ridge

3% Bear Canyon to the Village

2% Sierra Club Hut Trail

2% Devils Backbone

2% Manker Flats

2% Baldy Bowl

2% Devil's Backbone

1% North Backbone Trail

1% Manker Flats to Devil's Backbone

1% Manker Flats to Ski Hut to Baldy Bowl

1% West Bowl Snowclimb

1% Baldy Notch

0% Good Canyon

0% F

0% San Antonio Ridge

0% Same as the way up.

0% Markam Flats -Baldy Trail

0% Backbone Trail

0% Three T's Trail to Ice House Canyon Trail

0% Devil's Backbone Trail


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SNAPSHOTedit info


10,064 ft / 3,068 m


6,224 ft / 1,897 m

Height Rank Range

San Gabriel Mountains


California, United States

Summited by

see all
  • eskimoto
  • 100peaks
  • scott
  • pvgjosh42
  • Sunday
  • nmontelli
  • justinjohnsen
  • JeffHester
  • modernhiker
  • shanaynay11
  • MawdurnBukanier
  • jonberry

Nearest peaks see on map »