John Sturgeon v. Sue Masica

OPINION

NGUYEN, Circuit Judge:

John Sturgeon (“Sturgeon”) challenges the National Park Service’s (“NPS”) enforcement of a regulation banning the operation of hovererafts on the Nation River, part of which falls within the Yukon-Charley Rivers National Preserve. The ban prevented Sturgeon from using his personal hovercraft on his moose hunting trips on the Nation River. The State of Alaska intervened, challenging NPS’s authority to require its researchers to obtain a permit before engaging in studies of chum and sockeye salmon on the Alagnak River, part of which falls within the boundaries of…