 The site, now in the Billy Frank Jr. Nisqually National Wildlife Refuge, was designated by Congress as the Medicine Creek Treaty National Memorial on December 18, 2015.The treaty granted 2.24 million acres (9,060;km²) of land to the United States in exchange for establishment of three reservations, cash payments over a period of twenty years, and recognition of traditional native fishing and hunting rights.The exact nature of those rights was disputed until the Boldt Decision in 1974.