Nearby Mount Breitenbach sits just 3 miles south of Corruption and Borah Peak , Idaho's tallest, lies 5.7 to the northwest. These peaks are typically accessed from the Lost River Valley and the ID-93 corridor. Mount Corruption's approach involves crossing over from the Lost River Valley, just north of Borah, into the Pahsimeroi Valley with at least 25 miles of variable dirt road.
Mount Corruption's name derives not from a corrupted historical mining company in the area, nor a corrupt congressmen, but simply from the quality of rock on the peak. Nearby Bad Rock Peak is unofficially named in similar fashion. The Lost River Range contains one of the greatest collections of impressive unnamed peaks. Some notable unofficially named peaks include: Mount Idaho (12,065), Sacajawea Peak (11,936), Mount Corruption (11,857), Mount Church (12,200), No Regret Peak (11,972), Lost River Mountain (12,078), USGS Peak (11,982). You'll notice that 3 of Idaho's 12ers do not have official names. There are over 50 peaks in the Lost River Range that rise from 10,000 to 12,000+ feet with no official name.
Trails / Routes
Numerous other possibilities exist starting on the north side valley and the West Fork of the Burnt Creek.
Maps: USGS Burnt Creek NE, USGS Leatherman Peak, USGS Rabbit Creek Summit, 1:100,000 Borah Peak
4WD is required for the spring creek crossings, short steep hills, and large rocks in the dirt roads.
For the SW Face: Park as high up into the East Fork valley that you can and stay close and just above the river on the east side. Look for a small forested area that rises slightly into the SW Face (visible on the USGS map). Follow the tree band as high as it will go and then enter the scree field. Follow the few solid sections of limestone and angle slightly left as you rise up. Just under the summit you angle back to the right under a cliff band on the ridge and ideally exit at a small notch where you'll walk just east and south a few hundred feet to the true summit.
For the North-Northwest Couloirs: From approximately 8200 feet pick your way up through pines and small cliff bands until your just under the couloir.
Lost River Ranger District
P.O. Box 507
716 W Custer
Mackay, Idaho 83251
Office Hours: Monday - Friday 8:00 am - 4:30 pm
Primitive camping can be found virtually anywhere.
Nearby Mackay, Idaho Climate Data:
|Average Max. Temperature (F)||29.2||34.2||43.0||55.2||65.2||74.1||84.1||82.7||73.3||60.1||42.1||31.3||56.2|
|Average Min. Temperature (F)||5.6||10.1||18.9||28.1||35.9||42.3||48.4||46.3||38.3||30.0||18.7||8.9||27.6|
|Average Total Precipitation (in.)||0.78||0.61||0.61||0.68||1.09||1.34||0.93||0.80||0.67||0.57||0.59||0.78||9.43|
|Average Total SnowFall (in.)||7.5||5.9||2.4||0.5||0.1||0.0||0.0||0.0||0.1||0.2||2.0||7.3||26.1|
|Average Snow Depth (in.)||5||4||1||0||0||0||0||0||0||0||0||3||1|