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

342 members report climbing or hiking to the summit, most recently on May 24, 2015. Below are trip reports and shared pictures from their climbs.

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
  • Earthculture22
  • Betty
See more

Routes Used trails & approaches

23% Ski Hut Trail

15% Ski Hut Trail from Manker Flats

8% devil backbone trail

8% Devils Backbone Trail

6% Devils backbone Trail

5% Bear Canyon Trail

3% Register Ridge

3% Devil's Backbone Trail

3% Manker Flats to Ski Hut to Baldy Bowl

2% Sierra Club Hut Trail

2% Devils Backbone

2% Manker Flats to Devil's Backbone

2% Bear Canyon to the Village

2% Manker Flats

2% Baldy Bowl

1% North Backbone Trail

1% West Bowl Snowclimb

1% Markam Flats -Baldy Trail

1% Baldy Notch

1% Devil's Backbone

0% Good Canyon

0% F

0% San Antonio Ridge

0% Same as the way up.

0% Backbone Trail

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

0% Devil's Backbone Trail


SNAPSHOTedit info

Alternate Names

Mount Baldy


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
  • foxy40
  • pvgjosh42
  • Sunday
  • nmontelli
  • df234afsef1245r
  • JeffHester
  • modernhiker
  • shanaynay11
  • MawdurnBukanier

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