The Lehigh River is a tributary of the Delaware River, approximately 103 mi (166 km) long, in eastern Pennsylvania in the United States. The river flows in a highly winding course through valleys between ridges of the Appalachian Mountains. Its lower course formed the heart of the historically important anthracite coal- and steel-producing region known as the Lehigh Valley.

It rises in the Pocono Mountains of northeastern Pennsylvania, in several ponds in southwestern Wayne County, approximately 15 mi (24 km) southeast of Scranton. It flows initially southwest, through southern Lackawanna County, through Francis E. Walter Reservoir. Near Middleburg it turns south, following a zigzag course to Jim Thorpe, then southeast, past Lehighton. Southeast of Lehighton, it passes through Blue Mountain in a narrow opening called the Lehigh Gap. It flows southeast to Allentown, then NNE past Bethlehem, joining the Delaware River in Easton.

See also

• List of Pennsylvania rivers

External link

• Lehigh River Watershed Association
• Lehigh River and Canal at Jim Thorpe, Pennsylvania