Agency officials said opening the bypass tubes at the Glen Canyon Dam would have reduced the elevation of Lake Powell at a time when it's at historic lows.
Apache Stronghold's attorneys predict the court will rule on the case sometime next year. If favorable, it could pause the proposed mining project at the Apache sacred site.
The nonprofit Apache Stronghold is traveling to the U.S. Court of Appeals for the Ninth Circuit in California to try and block copper mining at the Apache sacred site.
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