The Holden Mine Cleanup Project is a federally mandated mine cleanup and remediation effort in Washington’s Okanogan-Wenatchee National Forest. The goal of the cleanup project is to address environmental problems left by the operation of the Holden Mine in the 1930s-1950s.

Rio Tinto is committed to the Holden Mine Cleanup Project for the long term. Decades of environmental monitoring and water treatment will follow the cleanup activities. An operations and maintenance team remains at the site year-round to manage …

Holden Village. After the Holden Mine closed in 1957, the mine site was sold to the Lutheran Bible Institute, which transformed the former mining town into a spiritual retreat called Holden Village. Up to 100 people live at the site year-round and nearly 5,000 people visit each summer.

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The Holden Mine was an underground copper mine operated by the Howe Sound Mining Company between 1938 and 1957. After the mine closed, Howe Sound gave it and the accompanying town site to the Lutheran Bible Institute, which has operated a spiritual retreat center called Holden Village under a special permit from the U.S. Forest Service ever since.

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2016年4月28日 · • Government-ordered cleanup of the old Holden Mine • Holden Mine produced copper between 1938 and 1957 • Howe Sound Mining Company abandoned the mine, leaving behind many environmental problems. • Rio Tinto never owned or operated the mine, but inherited the responsibility for the cleanup through acquisition of another company.

Why clean up the Holden Mine? • Federally mandated cleanup to address environmental problems from the old Holden Mine: –Snowmelt and rainwater mix with metals to create acid mine drainage from mine portal, and acid rock drainage (ARD) from tailings and waste rock piles –ARD affects groundwater and surface water quality, including in

Fiction: You’re cleaning up the Holden Mine so you can go in and mine again. Fact: No. This is a federally mandated mine cleanup. Rio Tinto has no interest in mining the area – and we couldn’t even if we wanted to. Holden Village owns the mining claims and the Forest Service has removed the surrounding area from any mineral exploration.

Why clean up the Holden Mine? Federally mandated cleanup to address environmental problems from the old Holden Mine: • Snowmelt and rainwater mix with metals to create acid mine drainage from mine portal, and acid rock drainage (ARD) from tailings and waste rock piles • ARD affects groundwater and surface water quality, including in ...