Boise Mountains

Trinity Mtn

Geographically the Boise Mountains are roughly defined by the Boise National Forest and contain 20 mountain lakes and over 35 named summits. The region is relatively warm and dry- slightly more moist than a typical desert mountain range. Snowfall can be very heavy in the winter and the summers are hot and dry.  Forest fires are always a threat here, given the dry summer conditions, the level of 4WD usage, and the number of hunters visiting the region in the Fall.  

Defining the Bounds of the Range

• the northern edge boundary is the scenic South Fork of the Payette River
• the eastern edge boundary is the Sawtooth, Smoky and Soldier Mountains.
• the southern edge boundary is Snake River Plain
• the western edge boundary is ID-55 (and portions of the Payette River)

The major rivers and creeks within the range:  North, Middle, and South Forks of the Boise River, Crooked River, Payette River, Mores Creek, Grimes Creek, Willow Creek, Bear Creek (and about 1000 other smaller creeks)

Road access is generally good with jeeps roads covering most all of the terrain. The most pristine areas devoid of most motorized traffic would be the Trinity Mountain Region and the Atlanta to Grandjean (Upper reaches of the South Fork of the Payette) area. 

Scrambles

Noteworthy Scrambles
Trinity Mountain- 9451 ft (Class 1)
Wolf Mountain- 8876 ft (Class 2)
Swanholm Peak- 8727 ft (Class 2)
Rattlesnake Mountain- 8177 ft (Class 2)
Steele Mountain- 9730 ft (Class 3 - 5.9)
Two Point Mountain- 10,124 ft (Class 3)
Picket Mountain- 8123 ft (Class 2)
Danskin Peak-6694 (Class 1)

The Boise Mountains make an excellent training area during the edges of the
backcountry climbing season. In April or December, while some of the roads in
the nearby higher mountains are snowed in, this region is often accessible.