The Tenth Circuit held that the Migratory Bird Treaty Act (MBTA) applies a strict liability standard to the taking or killing of migratory birds but that it requires a defendant to proximately cause the statute's violation for the statute to pass constitutional muster. The case arose when two oil dr...

The court holds that an 11-month period between the publication of a new statutory fee for unpatented mining claims and the compliance deadline afforded a claim holder a reasonable opportunity to comply with the deadline, and, thus, did not violate his procedural due process rights. Pursuant to the ...

The court holds that Endangered Species Act (ESA) §9(a)(1)'s application to a fly that exists only in California is within Congress' Commerce Clause power. The court first holds that the application of ESA §9 to the fly can be viewed as a proper exercise of Congress' Commerce Clause power over act...

The court holds that the owners of royalty interests in federal oil and gas leases are not entitled to royalty payments from their lessee. During ongoing title disputes over mineral patent rights between the federal government and several private parties, the lessee acquired both federal and private...

The court holds that the National Park Service's (NPS') decision not to prepare an environmental impact statement (EIS) for the removal of 12 horses from Santa Cruz Island in the Channel Islands was not arbitrary and capricious. The NPS planned to remove the horses and other animals in order to allo...

The court upholds an injunction requiring an ore processing plant owner to provide the U.S. Forest Service with access to the area surrounding his mill and precluding further operations until the Forest Service approves a new operating plant. The court first holds that the district court did not err...

The court holds that the Alaska mining commissioner permissibly nullified the mining rights acquired by a mining claims locator on state-selected federal lands. The court first holds that the commissioner did not err in finding that the locator was not qualified to conduct business in Alaska and, th...

The court reverses a district court summary judgment decision that ordered the owners of unpatented mill site claims in the Tonto National Forest in Arizona to remove themselves and all their things from the sites and to restore the sites to their natural condition. The government sought to evict th...

The court accepts and enters a consent decree between a citizen group and West Virginia's environmental agency that commits the agency to strengthen the application and oversight of the state's surface coal mining program authorized under the Surface Mining Control and Reclamation Act (SMCRA). The g...

The court grants summary judgment to the U.S. Department of the Interior in a citizen suit action brought against it under the Endangered Species Act (ESA) and the Administrative Procedure Act challenging the U.S. Fish and Wildlife Service's (FWS') approval of a habitat conservation plan (HCP) and a...