Rising north of Butte, east of Deer Lodge, south of Highway 12 between Helena and Garrison Junction, and west of the Jefferson City-Clancy area and the Boulder River Valley, the Boulder Mountains ...

The city of Boulder recently announced starting what's been described as "a multi-year trail and ecological restoration ...

BOULDER — A motion-activated wildlife-surveillance camera has captured what one expert calls the first documented sighting of a northern river otter in Boulder in about 100 years.

Crews at Rocky Mountain National Park are preparing Old Fall River Road ​t​o open for the season to vehicles on Friday ...

The Elkhorn Range, whose volcanic origins are associated with the Boulder Batholith, is split from the Boulder Range by the Boulder River. Haystack Mountain on the Continental Divide, with an ...