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Ascent of The Thumb on 1986-05-25

Climber: Greg Gerlach

Others in Party:Sierra Club SPS group
----Only Party on Mountain
Date:Sunday, May 25, 1986
Ascent Type:Successful Summit Attained
Peak:The Thumb
    Location:USA-California
    Elevation:13356 ft / 4070 m

Ascent Trip Report

This was a Sierra Peaks Section trip led by George Toby and Jim Farkas. On day one, the group backpacked from the Birch Lake trailhead to Birch Lake, and set up camp at its northeast side. The next day, the group day hiked around the south shore of Birch Lake southwestward to the top of the moraine shown on the topo map, then climbed up The Thumb's southeast slope to the summit, which went class 2-3. Afterwards, we dropped back down the peak's southeast slope to about 11,800' in elevation, contoured across a moraine eastward and then climbed up a gully on the west side of Birch Mountain to the peak's west ridge, which we followed to the summit; the route went class 2-3. Later, the group returned to camp, then backpacked out to the vehicles. Trip stats include a ascents of both peaks.
Summary Total Data
    Total Elevation Gain:8215 ft / 2503 m
    Total Elevation Loss:8215 ft / 2503 m
    Round-Trip Distance:18 mi / 29 km
    Grade/Class:Class 2-3
    Nights Spent:1 nights away from roads
Ascent Statistics
    Gain on way in:6465 ft / 1970 m
    Distance:9 mi / 14.5 km
    Route:Southeast slope
    Start Trailhead:Birch Lake Trailhead  6891 ft / 2100 m
Descent Statistics
    Loss on way out:8215 ft / 2503 m
        Loss Breakdown:Net: 6465 ft / 1970 m; Extra: 1750 ft / 533m
    Gain on way out:1750 ft / 533 m
    Distance:9 mi / 14.5 km
    Route:Southeast slope
    End Trailhead:Birch Lake Trailhead  6891 ft / 2100 m



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