Bitterroot Valley
Coordinates: 46°14′49″N 114°09′36″W / 46.247°N 114.160°W
The Bitterroot Valley is located in southwestern Montana, along the Bitterroot River between the Bitterroot Range and Sapphire Mountains, in the Northwestern United States.
The valley extends approximately 95 miles (160 km) from Lost Trail Pass in Idaho, where it is narrow, to a point near the city of Missoula along I-90 where it is wider and flatter. To the west is the Bitterroot Range and its large Selway-Bitterroot Wilderness Area, and to the east is the smaller Sapphire Mountains and their Anaconda-Pintler Wilderness Area. The Bitterroot Range has steep faces, deep canyons, is heavily forested, and is within the Bitterroot National Forest. The Sapphire Mountains are more rounded, drier, and much less forested.
The southern end of the valley is split into the East and West Forks of the Bitterroot River, and the northern end has the confluence of the Bitterroot River with the Clark Fork River. Connecting into the west side of the valley are numerous deeply carved granite canyons, including scenic Blodgett Canyon and Lolo Creek's canyon.
...
Wikipedia