All Mountain Ranges
Mountain Range
moderate

Pioneer Mountains

Montana

Elevation Range

6,000 ft - 11,939 ft

Notable Peaks

3

Coordinates

45.4804, -112.9651

About Pioneer Mountains

The Pioneer Mountains are a rugged and remote mountain range located in southwestern Montana. Spanning over 30 miles from north to south, the range features jagged granite peaks, deep glacial valleys, and pristine alpine lakes. The terrain is characterized by steep, rocky slopes, with many high-elevation passes and ridgelines. The mountains are home to diverse wildlife, including bighorn sheep, mountain goats, elk, and grizzly bears.

Notable Peaks

Lone Peak

11,939 ft

Mount Tweedy

11,154 ft

Hollowtop Mountain

10,604 ft

Activities

hiking
backpacking
mountaineering
camping
wildlife viewing
fishing

Best Seasons

summer

fall

Plan Your Trip

Let Cairn help you plan the perfect adventure to Pioneer Mountains.

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Gateway Towns

Anaconda, MT
Wise River, MT
Dillon, MT

Location

Montana

45.4804, -112.9651

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Data Source

Geographic data from USGS Geographic Names Information System (GNIS). Descriptions generated with AI assistance.

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