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,
George Armstrong Custer and form a skirmish line. They were soon overcome by mounted Lakota and Cheyenne warriors who counterattacked "en masse" against Reno's exposed left flank, forcing Reno and his men to take cover in the trees along the river. Eventually, however, this position became untenable, and the troopers were forced into a bloody retreat up onto the bluffs above the river, where they made their own stand. This, the opening action of the battle, cost Reno a quarter of his command. Custer may have seen Reno stop and form a skirmish line as Custer led his command to the northern end