Sheridan County, Montana

Sheridan County is a county found in the U.S. state of Montana. As of the 2010 United States Census, there were 3,384 people. Its county seat is Plentywood. Its northern boundary is the Canada–United States border south of Saskatchewan.
History.
The county was founded in 1913 and named for American Civil War General Philip Sheridan.
Geography.
According to the United States Census Bureau, the county has a total area of , of which is land and (1.7%) is water.