Custer, Montana Custer, Montana Custer is a census-designated place (CDP) in Yellowstone County, Montana, United States. The population was 145 at the 2000 census. This community bears the name of U.S. Army General George Armstrong Custer who was defeated and killed at the Battle of Little Big Horn, which took place nearby in 1876. Custer is located at (46.128870, -107.556302). According to the United States Census Bureau, the CDP has a total area of , all of it land. According to the Köppen Climate Classification system, Custer has a semi-arid climate, abbreviated "BSk" on climate maps. As of the census of 2000,
Battle of the Little Bighorn break back to the south where Reno and Benteen could have provided assistance. Two men from the 7th Cavalry, the young Crow scout "Ashishishe" (known in English as Curley) and the trooper Peter Thompson, claimed to have seen Custer engage the Indians. The accuracy of their recollections remains controversial; accounts by battle participants and assessments by historians almost universally discredit Thompson's claim. Archaeological evidence and reassessment of Indian testimony has led to a new interpretation of the battle. In the 1920s, battlefield investigators discovered hundreds of .45–55 shell cases along the ridge line known today as Nye-Cartwright Ridge, between South