South Chilly Butte by Margo Mandella

Elevation: 6,730 ft
Prominence: 300

South Chilly Butte - Steve Mandella

This peak is not in the book. The access section was updated by Livingston Douglas. Updated October 2018


South Chilly Butte lies southwest of the unincorporated community of Chilly, Idaho, which is located north of Trail Creek Road and northwest of Mackay, Idaho. South Chilly’s sister butte, North Chilly Butte, lies to the northeast.

South Chilly Butte is on State of Idaho-managed public land. The parcel is fenced for grazing. The vehicle entry to the parcel is found on South Chilly Butte’s north side. This peak is probably the easiest to climb of the “butte peaks” in the Big Lost River Valley. USGS Topo: Chilly Buttes

South Chilly Butte - Steve Mandella

South Chilly Butte from Trail Creek Road – Steve Mandella photo.


Access by Livingston Douglas

From US-93 north of Mackay, turn L/W onto [signed] Trail Creek Road. Drive 3.5 miles on Trail Creek Road to an unsigned junction [5975W, which you will discover later]. Turn R/N onto [unsigned] 5975W and drive 0.6 miles to a signed junction with 6000W/Anderson Road. Here is where you discover that you’ve been driving on 5975W! Turn L/W and drive 0.4 miles to a pass/saddle between North Chilly Butte and South Chilly Butte. Park off the road here (6,450 feet). This is the launching point for climbs of both buttes.


North Approach, Class 2

Climb straightforward terrain, staying west of the small rock outcrops, from Anderson Road directly to the summit area. The actual summit is obvious. There is no marker, register, or summit cairn.

This is the steepest approach on the butte, but it is short, footing and route visibility are good, and the climb is obtainable by most fitness levels.

Trip Stats: 0.6 mile roundtrip, 283 feet elevation.

South Chilly Butte from Anderson Road. Photo - Steve Mandella

The North Ridge approach, South Chilly Butte. Photo – Steve Mandella


West and South Approaches, Class 2

The GPS track below shows the mellower but longer (approximately 1 mile) west and south side climbing options.

Photo - Steve Mandella

Looking down the southwest ridge approach from the summit. Photo – Steve Mandella

Climbing Track - Steve Mandella

Climbing Track – Steve Mandella

The summit cairn atop South Chilly Butte, looking southward. Livingston Douglas Photo

The summit cairn atop South Chilly Butte, looking southward. Livingston Douglas Photo

Additional Resources

Mountain Range: Boulder Mountains

Year Climbed: 2019

Longitude: -113.91069   Latitude: 44.06919

Share this post ...Facebooktwitterredditpinterestmail

Comments are closed.