NARF has been retained by the Eastern Shoshone Tribe (EST) of the Shoshone or Wind River Indian Reservation to analyze the Surplus Land Act of March 3, 1905, and other legislation and cases to determine their implications for the reservation’s boundaries.

The most active matter related to the reservation boundary issue is an ongoing appeal of the U.S. Environmental Protection Agency’s (EPA) determination that the EST and Northern Arapaho Tribe (NAT) qualify for a delegation of certain Clean Air Act programs.