Idaho Centennial Trail is a hiking trail in Valley County and Custer County, Idaho. It is within Frank Church-River of No Return Wilderness Area and Salmon-Challis National Forest. It is 22.9 miles long and begins at 4,742 feet altitude. Traveling the entire trail is 24.9 miles with a total elevation gain of 5,770 feet. Along the trail there is a camp site.
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