About 40 acres of land at the Wounded Knee massacre site in South Dakota would be officially handed over to joint ownership by the Oglala Sioux Tribe and the Cheyenne River Sioux Tribe, with legal protections that stop the land from ever being sold, mortgaged, or leased away. The Department of the Interior, the federal agency that manages tribal and public lands, would handle the paperwork to make this happen. Going forward, the land must be kept as a memorial and sacred site according to an agreement the two tribes signed in 2022, and no casinos, hotels, shops, or other commercial or gambling development can be built there.