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Boulder Mountains (Montana) facts for kids

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For the mountain range in central Idaho, see Boulder Mountains (Idaho).
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Boulder Mountains
Highest point
Peak Haystack Mountain
Elevation 8,819 ft (2,688 m)
Geography
Country United States
State Montana
Range coordinates 46°08′29″N 112°19′35″W / 46.14139°N 112.32639°W / 46.14139; -112.32639Coordinates: 46°08′29″N 112°19′35″W / 46.14139°N 112.32639°W / 46.14139; -112.32639
Parent range Rocky Mountains

The Boulder Mountains is a mountain range running north–south west of Boulder between Helena and Butte in the U.S. state of Montana. Parts of the range are in four different counties: Deer Lodge, Jefferson, Lewis and Clark, and Silver Bow.

Haystack Mountain, which reaches 8,819 feet (2,688 m), is the tallest peak in the range. The three other highest peaks are Jack Mountain at 8,752 feet (2,668 m), Bull Mountain at 8,609 feet (2,624 m), and Thunderbolt Mountain at 8,597 feet (2,620 m). All four peaks are in Jefferson County.

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