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,
Dorothy Custer "Let Me Call You Sweetheart" to Jay on Valentine's Day 2012. In May 2012, Custer celebrated her 101st birthday by ziplining in the Snake River Canyon. Author and physician Jacob M. Appel honored Custer by modeling a minor character after her in his novel "The Man Who Wouldn't Stand Up" (2012); in a 2013 interview, Custer said she was flattered by the honor but acknowledged not having read the book. In June 2013, Custer celebrated her 102nd birthday by BASE jumping off the Perrine Bridge into the Snake River Canyon. She became the oldest BASE jumper with the help of