Battles in the Dakota Territory

July 24-25, 1863 - Big Mound

July 26, 1863 - Dead Buffalo Lake

July 28, 1863 - Stony Lake

September 3-5, 1863 - Whitestone Hill

July 28-29, 1864 - Killdeer Mountain / Tahkahokuty Mountain

REF:

https://americanhistory.suite101.com/article.cfm/
civil_war_and_native_americans