"BILLINGS, Mont. — Conservation groups want a Montana court to cancel the approval of a long-disputed copper mine that they say would pollute a tributary of one of the state’s most popular recreational rivers.
Montana Trout Unlimited and other groups filed a lawsuit Thursday alleging state officials did not thoroughly study the environmental harm that could result from the Black Butte copper mine in central Montana.
The Montana Department of Environmental Protection and Tintina Montana Resources were named as defendants in the complaint filed in state district court in Meagher County."
Source: AP, 06/05/2020
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