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National Wilderness Areas in Idaho

Frank Church-River of No Return Wilderness, Idaho
In the Frank Church-River of No Return Wilderness

About 2/3 of the human population in Idaho lives in the southern part of the state, spread out through the Snake River Valley. That leaves some pretty large chunks of forested, mountainous terrain with almost no people. Borah Peak, at 12,662', is the highest point in Idaho but for now is inside a Wilderness Study Area. It won't become a true designated Wilderness Area until Congress takes positive action. The wildernesses are further down the hill, where there tends to be more tree cover and more wildlife.

The 2,366,757-acre Frank Church-River of No Return Wilderness is the 2nd largest wilderness in the 48 contiguous states, the Death Valley Wilderness in California being the only wilderness in the lower 48 that's bigger. The Frank Church-River of No Return Wilderness is separated from the Selway-Bitterroot Wilderness to the north only by the 600-foot wide Magruder Corridor: a dirt road that follows the Nez Perce Trail across Idaho and over Nez Perce Pass into Montana. This is a countryside of rugged, glaciated peaks rising above huge forests with abundant wildlife and great opportunities for solitude and a true wilderness adventure. The Selway-Bitterroot Wilderness is the third largest wilderness area in the lower 48 states.

The Selway-Bitterroot, Frank Church-River of No Return, Gospel-Hump and Sawtooth Wildernesses are all located on or above the Idaho Batholith, a huge Precambrian igneous intrusion of gray-green granite that underlies virtually all of central Idaho. The Sawtooth Wilderness is also located on the Sawtooth Batholith, another, perhaps more recent, batholith deposited on top of the Idaho Batholith.

Craters of the Moon Wilderness sits atop the Great Rift: a 62-mile-long, 2-mile-wide crack in the Earth's surface that seems to want to erupt and deposit more lava on the Earth's surface about every 2,000 years... and it's about that time again.

Idaho Wildernesses mapBruneau-Jarbridge Rivers WildernessOwyhee River WildernessPole Creek WildernessBig Jacks Creek WildernessLittle Jacks Creek WildernessNorth Fork Owyhee WildernessSawtooth WildernessFrank Church-River of No Return WildernessHells Canyon WildernessGospel-Hump WildernessSelway-Bitterroot Wilderness
You can click on the names on the map above or you can use the list below to find out more information:
National Forest Wildernesses
National Park Service Wildernesses

Bureau of Land Management Wildernesses
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Photo of the Frank Church-River of No Return Wilderness courtesy of the National Forest Service
Map courtesy of Cartesia MapArt Terrain.
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