The Lehigh River, a tributary of the Delaware River, is a 103 mile (166 km) long river located in eastern Pennsylvania, in the United States. Part of the Lehigh, along with a number of its tributaries, is designated a Pennsylvania Scenic River by the state's Department of Conservation and Natural Resources. "Lehigh" is an Anglicization of the Lenni Lenape name for the river, "Lechewuekink," meaning "where there are forks."