Elevation: 10,954 ft
Climbing information for this peak is found on page 309.
This peak is most often climbed via the connecting ridge to Little Sister Peak. Class 2 via the connecting ridge. Larry Prescott climbed this peak as part of a 13 mile, 7,900 gain day which included five other peaks: Lemhi Enchainment, Little Sister to Foss Mountain
Big Sister viewed from Rust Peak. This peak is also know as Lexis Peak. Rick Baugher Photo 10-28-90
This map,shows Larry Prescott’s track from Mud Springs to Little and Big Sister peaks. Larry Prescott Map
Big Sister from Little Sister. Larry Prescott Photo
Big Sister Peak from Little Sister Peak. Dan Robbins Photo
Mountain Range: Lemhi Range
Longitude: -113.12869 Latitude: 44.16669
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