Big Sister Peak

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 … Continue reading

Peak 10168 (East Burnt Peak)

This peak is not in the book. Livingston Douglas added additional access and route information as well as three photos. Updated November 2024 East Burnt Peak sits east of the head of the East Fork of Burnt Creek. See map below, which shows this intermittent stream as East Fork Burnt Creek. This peak is connected to Apex Peak via a … Continue reading

Peak 9854 by Livingston Douglas

This peak is not in the book. Published November 2021 Peak 9854 towers over Christian Gulch to the south and Rock Spring Canyon to the north. It is a combination of steep pine forest, rocky buttresses/towers, and hidden cliff bands and should be taken seriously. Choose your route wisely for this one and descend the same route that you ascend. … Continue reading

Peak 10470 (Little Mill Mountain)

Little Mill (Mill Mtn. is on the left). The SW Ridge ascends from the saddle NW of Mill Lake. Judi Steciak Photo

This peak is not in the book. Updated September 2020 Little Mill Mountain is located just southeast of Mill Mountain. The two peaks are connected by a Class 2 ridge. It is a Class 2 scramble from the connecting saddle to the summit. USGS Mogg Mountain Access Drive to Mill Lake via Mill Creek Road FS-010 and FS 006 [(A)(9.2) … Continue reading

Mill Mountain

Climbing and access information for this peak is on Page 299 of the book. The route information set out below replaces the information in the book. Updated September 2020 Mill Mountain is located east of the main Northern Lemhi Range Crest and is paired with Peak 10470 (Little Mill Mountain) on a long curving ridge line. The book describes the route … Continue reading

Sinker Butte

This peak is not in the book. There are two routes set out below. Updated November 2022 Sinker Butte is located south of the Snake River by Idaho Power’s Swan Falls Dam. While not a sharp, dominating summit, the peak is an excellent vantage point from which to view the impressive Snake River Canyon. Two routes are included below. The … Continue reading