Elevation: 10,954 ft
Climbing and access information for this peak is on Page 309 of the book.
Big Sister Peak is most often climbed via the Class 2 connecting ridge with Little Sister Peak. This peak can be climbed as part of the Lemhi Enchainment, Little Sister to Foss Mountain pioneered by Larry Prescott. USGS Bell Mountain
Big Sister as viewed from Rust Peak (10/28/90). This peak is also known as Lexis Peak. Rick Baugher Photo
This map shows Larry Prescott’s track from Mud Springs to Little Sister Peak and Big Sister Peak. Larry Prescott Map
Big Sister Peak as viewed from Little Sister Peak. Larry Prescott Photo
Big Sister Peak as viewed from Little Sister Peak. Dan Robbins Photo
Mountain Range: Lemhi Range
Longitude: -113.12869 Latitude: 44.16669
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