The purpose of this legislation, known as the Wounded Knee Massacre Memorial and Sacred Site Act, is to ensure that a specific piece of land in South Dakota is officially recognized as belonging to the Oglala Sioux Tribe and the Cheyenne River Sioux Tribe. This land will be held in a special status called "restricted fee status," which provides protections and specific rights regarding its use and ownership. Key provisions of the Act require the Secretary of the Interior to complete necessary actions to secure this restricted fee status for the land within one year of the law's enactment.