Locations
Butte Reduction Works Smelter Area
Diggings East Area
Grove Gulch Area
Insufficiently Reclaimed Source Areas
Northside Tailings Area
Uncontrolled Surface Flow Areas
Unreclaimed Solid Media Sites
Blacktail Creek and Confluence Area
Buffalo Gulch Area
Copper Mountain Sports and Recreation Complex Area
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Atlantic Richfield to begin construction activities at Diggings East
Aug 31, 2026
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Anderson Shaft Remedial Activities
Aug 31, 2026
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Anselmo Mine Yard Staging Area
May 5, 2026
