Topic - Hells Canyon Dam

Hells Canyon Dam is a concrete gravity dam on the Snake River (river mile 247) in Hells Canyon on the Idaho-Oregon border. The dam impounds the Snake River in Hells Canyon Reservoir; its spillway elevation is above sea level. - Source: Wikipedia

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Backpackers hike along the Snake River Trail in Hells Canyon on the Idaho side of the canyon heading toward Kirkwood Ranch in this undated photo. During spring break, it’s winterlike or springlike somewhere in Idaho because of the states' cold mountains and mild canyons.(AP Photo/Idaho Statesman, Pete Zimowsky)

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