South Basin Peak (pt. 13,240')

South Basin Peak (pt. 13,240')

Page Type Page Type: Mountain/Rock
Location Lat/Lon: 37.29140°N / 118.6725°W
Additional Information Elevation: 13240 ft / 4036 m
Sign the Climber's Log


South Basin Peak is the highpoint on the ridge connecting Basin Mountain to an adjoining plateau that lies between Mt Humphreys, Four Gables, and Basin Mountain. In R.J. Secor's "The High Sierra" guidebook he calls it Peak 13,240'. However, when I read through the band-aide box summit register that was left on the peak by a 1960 Sierra Club ascent, some of the entries called the summit South Basin Peak.

Admittedly this summit doesn't stand out much from the imposing surroundings of Mt Humphreys, Basin Mountain, and Mt Tom, but it is still a worthwhile peak to climb, nonetheless. It has solid rock and some very enjoyable class 4 scrambling. Also, this is a great peak to do in combination with Basin Mountain and Four Gables.

Route Difficulty FA FA Party Photos
Northeast Ridge cl. 4 1992 Will Crjenko and Jim King (1), (2), (3)
Southwest Ridge cl. 3 Sep 20, 1953 Barbara Lilley, John Wedberg, and Dick Woodward
Horton Lakes cl. 2 1930 Norman Clyde
First ascent information used from R.J. Secor's "The High Sierra" guidebook.

Getting There

Take HWY 168 west from the center of Bishop. Head about 7.5 miles and turn right onto Buttermilk Road. At this point, the paved road becomes a passable dirt road. As one gets closer to the mountains the road gets more rough. A 4WD vehicle is needed to make it all the way to the trailhead, and having high clearance would be a benefit.

Continue on Buttermilk Road past several forks and turn-outs. When in doubt, take a more traveled right fork. At some point, you will reach the marked intersection of Buttermilk Road and the Horton Lakes trailhead road. Turn right here and follow it for another mile until it reaches a small dead tree forest. If it was challenging for your vehicle to get to this point, you may want to leave it here on the shaded pullout where you can still turn your car around.

From there hike the final half a mile to the Horton Lakes trailhead. If you have a 4WD vehicle, continue driving along the worsening road a little further as it turns back across the slopes heading north until you reach the locked gate. Park here to approach any of the eastern, southern, or northern routes to the peak.

Red Tape

A wilderness permit is required for all overnight stays in the Horton Creek drainage from May 1 through November 1, and there is a quota. To find out more about getting a permit, check the Inyo National Forest website.

When To Climb

This peak can be climbed year-round, although a spring climb would be ideal since the loose class 2 talus and scree encountered would still be covered in snow.


One can car camp at the trailhead, but there are nice camping spots along the trail through the occasional flat meadows passed. One can also camp along the shores of Horton Lake, but to get even closer to the peak one can also camp at Upper Horton Lake.

External Links



Children refers to the set of objects that logically fall under a given object. For example, the Aconcagua mountain page is a child of the 'Aconcagua Group' and the 'Seven Summits.' The Aconcagua mountain itself has many routes, photos, and trip reports as children.