The Wyoming Valley is also known as the Scranton/Wilkes-Barre area, after its principal cities, Scranton and Wilkes-Barre. The Susquehanna River occupies the southern part of the valley. The name Wyoming derives from the Munsee language name xwé:wamənk, meaning “at the big river flat.” The Munsee language is also known as Munsee Delaware, Delaware, or Ontario Delaware, and is an endangered language of the Eastern Algonquian subgroup of the Algonquian Native American language family.