Idaho Highway 21 has re-opened; Boise National Forest warns of snow on forest roads

newsroom@idahostatesman.comApril 10, 2014 

The 12-mile stretch of Idaho Highway 21 that was closed Tuesday due to avalanche threat re-opened Thursday morning at 9:15 a.m., according to the Idaho Transportation Department.

The section of highway between Grandjean Junction and Banner Summit has frequent closures in the winter and spring. For the most up-to-date conditions, call Idaho Traveler Services at 5-1-1, or check the Web site

Those who are planning to head into the mountains of the Boise National Forest should be prepared for snow on forest roads. And it could be deeper than you expect.

Six vehicles got stuck in the Granite Creek area just east of Idaho City last week, according to forest officials. Forest law enforcement officers assisted in getting those vehicles out.

“It is easy to think you can keep driving once you reach the snow line, but that snow typically just gets deeper,” David Olson, spokesman for the Boise National Forest, said in a release Thursday. “That leads to potentially expensive tows or long walks to get help.”

Forest officials recommend waiting a few weeks before venturing onto forest roads at higher elevations. Also, check in with forest officers on road access before leaving.

Call the Interagency Visitor Center at 208-373-4007, or visit the Boise National Forest website.

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