Wyo. Stat. § 36-10-109: Yellowstone National Park; acceptance of jurisdiction by state.

The state of Wyoming hereby accepts jurisdiction for all purposes whatsoever over the lands included within the original boundaries of Yellowstone National Park as described in 17 United States Statutes at Large 32 but excluded from the revised boundaries of Yellowstone National Park as described in 45 United States Statutes at Large 1435.