The Mizpah Creek incidents, were a series of incidents that occurred from April 5, 1879 – June 8, 1879, between United States Soldiers and civilians, and eight Northern Cheyenne's, that resulted in the death of one U.S. soldier, and the capture of the eight Cheyenne, three of whom committed suicide in prison at Miles City, Montana Territory. The incidents occurred near Mizpah Creek, a tributary of the Powder River, in Montana Territory, in present-day southeastern Montana, United States.