The Ninth Circuit affirmed a summary judgment rejecting a mining association's challenge to an Oregon law that prohibits the use of motorized mining equipment in rivers and streams containing essential salmon habitat. The association argued that the law was field preempted by the federal 1872 Mining...

A district court ordered the State Department to supplement its 2014 EIS for a cross-border oil pipeline, known as Keystone XL, to consider the pipeline company's alternative route that was approved for the project. Environmental groups argued that the agency violated NEPA by failing to revisit its ...

The Ninth Circuit affirmed in part and reversed in part a district court's summary judgment in favor of the U.S. Forest Service's approval of a site-specific project concerning restoration activities on roughly 80,000 acres in Payette National Forest in Idaho. Environmental groups challenged the app...