Beavers brought a volcanic wasteland back to life. Now it's under threat

The Smith family referred to the back part of their property as “the wasteland.” It opens up to the North Fork Toutle River in the U.S. state of Washington, which was swamped with volcanic sediment and runoff from the 1980 eruption of Mount St. Helens. The sediment was further backed up when the U.S. Army […]

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