On February 27, 1973, about 200 members of the Oglala Lakota, the American Indian Movement, and local activists occupied Wounded Knee on the Pine Ridge Reservation to protest tribal corruption, broken treaties, and the mistreatment of Native Americans. The 71-day standoff with federal authorities ended on May 8 after two Native men were killed and a U.S. Marshal was seriously wounded. Today, the main site visitors can see is the Wounded Knee Cemetery, which honors victims of the 1890 massacre and includes the grave of AIM member Buddy Lamont. In 2022, the Oglala Sioux Tribe and Cheyenne River Sioux Tribe purchased surrounding land to preserve it as a sacred place.