Plains is the plural of plain, a geographical feature. Plains or The Plains may also refer to: LocationsCanadaThree Mile Plains, Nova ScotiaFive Mile Plains, Nova Scotia ;United StatesGreat PlainsLlano Estacado, also known as the Staked Plains, South Plains, or the Southern High PlainsPlains, California, a former settlement in the state's Central ValleyPlains, Georgia, home town of former U.S. President Jimmy CarterPlains, KansasPlains, Montana The Plains, OhioPlains Township, Luzerne County, Pe… (More on Plains)