Gifford Pinchot National Forest

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Gifford Pinchot National Forest includes over 1.3 million acres of forest, wildlife habitat, watersheds & mountains, including Mt. Adams & Mount St. Helens National Volcanic Monument.

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  • Spirit Lake

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    The Gifford Pinchot National Forest is responsible for operating, maintaining, and repairing the 1.6 mile Spirit Lake tunnel and the engineered channels at Castle and Coldwater Lakes. Constructed in 1985, the tunnel provides the only outflow for Spirit Lake. The Forest Service is currently developing a collaborative strategy to create more sustainable and safer options for long term management of Spirit Lake Outflow to achieve ecological, economic and public safety needs.

    Learn more about Spirit Lake

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