Grand Ronde Reservation Act Amendment of 2023

This bill amends the Grand Ronde Reservation Act to redefine the reservation boundary as specifically the 84-acre Thompson Strip, replacing a prior description of lands within Oregon. It also prohibits the Confederated Tribes of Grand Ronde from using any land acquired through federal land claim settlements (including land purchased with settlement funds) for gaming under federal law. The amendment applies to the tribe's current and future land holdings related to settlement agreements. The bill explicitly states it does not affect the tribe's existing treaty rights.