Supreme Court: Half of Oklahoma Is Native American Land

The Supreme Court on Thursday ruled that a large portion of Oklahoma is Native American reservation land, belonging to the Creek Nation, and is therefore not subject to state jurisdiction. In a 5-4 decision, the Supreme Court ruled that because Congress failed to formally undo the Creek Nation’s 19th-century reservation, the land located in eastern Oklahoma remains “Indian Country” for purposes of federal criminal law.
https://www.thedailybeast.com/supreme-court-rules-half-of-oklahoma-is-native-american-land