Cumberland

Cumberland, county, southwestern Maine, U.S. It largely consists of a coastal region, facing Casco Bay to the southeast, that includes many islands, although the terrain rises to the northwest. The centre of the county is dominated by Sebago Lake. The principal waterways are the Fore, Presumpscot, and Royal rivers. The Songo Lock, constructed in 1830 and rebuilt in 1911, connects Sebago Lake with Long Lake to the northwest. White and red pine are the dominant...