OverviewMt. Thompson north to about .5 miles south of Lake Sabrina in the John Muir Wilderness. "Ski Mountaineers Peak", (unnamed on topo) is the high point on the Thompson Ridge .4 miles north of Mt. Thompson. It got its name from the Ski Mountaineers Section of the Sierra Club who have skied down it for years.
The east slope is class 2 and the northwest slope looks to be class 3-4 from Sunset Lake. It can be climbed along with Mt. Thompson on the same outing.
Turn left and wind up the canyon 7 miles to trailhead parking by the South Lake campground at 9,850'.
Take the trail along the east side of the lake that leads to Bishop Pass 3/4 mile to the junction with the Treasure Lakes Trail.
Stay to the right on the Treasure Lakes Trail as it winds through a forested area 1 1/4 mile until it comes out to a more open area at 10,300'.
Break trail and hike/scramble 2 miles west-southwest up over slopes and benches then up the east slope to the class 2 summit which is obvious to the right of Mt. Thompson.
This hike is approximately 8 miles round trip and 3,500' gain.
For overnight permits and red tape details click on the John Muir Wilderness page.
Forks Campground: 7,800', at the junction of Hwy. 168 and the South Lake Road.
Four Jeffery: 8,100', 1 mile up the South Lake Road and turn left.
Mountain Glenn: 8,500', 2.9 miles up the road.
Table Mountain: 8,800', 4 miles up the road.
Tyee Lakes: 9,200', 5 miles up the road.
LA Hupp: 9,400', 6 miles up the road.
South Lake: 9,850', at South Lake
There are also additional campgrounds along Hwy. 168 on the way to Lake Sabrina.