Boulder Mountains | |
Country: | United States |
State: | Montana |
Parent: | Rocky Mountains |
Length Orientation: | N/S |
Width Orientation: | E/W |
Highest: | Haystack Mountain |
Elevation Ft: | 8819 |
Coordinates: | 46.1414°N -112.3264°W |
The Boulder Mountains are a mountain range running roughly north to south located west of Boulder between Helena and Butte in the U.S. state of Montana.[1] Parts of the range are in four different counties: Deer Lodge, Jefferson, Lewis and Clark, and Silver Bow.
Haystack Mountain, which reaches 8819feet, is the tallest peak in the range.[2] [3] The three other highest peaks are Jack Mountain at 8752feet, Bull Mountain at 8609feet, and Thunderbolt Mountain at 8597feet.[2] All four peaks are in Jefferson County.[2]
Rocker Peak,,[4] is near Jack Mountain (Montana), the second highest peak in the Boulder Mountains.[5] There is a SNOTEL weather station near the summit of Rocker Peak at an elevation of . Rocker Peak has a subalpine climate (Köppen Dfc), bordering on an Alpine climate (Köppen ET).