The Fourth Circuit stayed a pipeline company's use of a nationwide permit, verified by the Army Corps of Engineers, to carry out construction of the Mountain Valley Pipeline in streams and rivers along the pipeline's route. Environmental groups argued the verification was unlawful because the Corps ...

The Montana Supreme Court affirmed vacatur of a Montana Pollutant Discharge Elimination System (MPDES) permit issued by the Montana Department of Environmental Quality (MDEQ) for a copper and silver mine in the Cabinet Mountains. Environmental groups argued, among other things, that MDEQ unlawfully ...

A district court granted in part summary judgment for DOI in a challenge to a 2016 FWS rule that prohibited certain hunting activities in the Kenai National Wildlife Refuge. The state of Alaska and a hunting group first challenged the Service's determination that the rule fell within a categorical e...

A district court dismissed a challenge to the Bureau of Reclamation's alleged ongoing, unpermitted take of bull trout through operation of an irrigation project near Glacier National Park. An environmental group argued that the Bureau's water control and delivery structures in the St. Mary River dra...