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Lehigh River
Lehigh River.JPG
Lehigh River near Jim Thorpe, Pennsylvania
Lehigh River watershed
Country United States
State Pennsylvania
Counties On the river: Wayne, Lackawanna, Monroe, Luzerne, Carbon, Lehigh, Northampton, Watershed: Wayne, Lackawanna, Monroe, Luzerne, Carbon, Lehigh, Northampton, Schuylkill, Berks, Bucks
Cities Lehighton, Allentown, Bethlehem, Easton
Physical characteristics
Main source Pocono Peak Lake
Lehigh Township, Wayne County, Pennsylvania, USA
2,056 ft (627 m)
41°16′42″N 75°24′22″W / 41.27833°N 75.40611°W / 41.27833; -75.40611
River mouth Delaware River
Easton, Northampton County, Pennsylvania, USA
160 ft (49 m)
40°41′20″N 75°12′17″W / 40.68889°N 75.20472°W / 40.68889; -75.20472
Length 109 mi (175 km)
(location 2)
  • Location:
  • Average rate:
    280 cu ft/s (7.9 m3/s)
Basin features
Basin size 1,345 sq mi (3,480 km2)

The Lehigh River, a tributary of the Delaware River, is a 109-mile-long (175 km) 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 Lenape name for the river, Lechewuekink, meaning "where there are forks".


The river flows in a highly winding course through valleys between ridges of the Appalachian Mountains. Its upper course is characterized by numerous whitewater rapids and supports a broad range of recreational pursuits including whitewater rafting, kayaking and canoeing. Its lower course forms the heart of the Lehigh Valley, a historically important anthracite coal and steel-producing region of Pennsylvania.

Karl Bodmer Travels in America (34)
Forest scene on the Lehigh (Pennsylvania) (circa 1832): aquatint by Karl Bodmer from "Maximilian, Prince of Wied’s Travels in the Interior of North America, during the years 1832–1834"

The river rises in the Pocono Mountains of northeastern Pennsylvania, in several ponds in Lehigh Township, Wayne County, approximately 15 miles (24 km) southeast of Scranton. It flows initially southwest, through southern Lackawanna County, through Francis E. Walter Reservoir. Near White Haven it turns south, following a zigzag whitewater course through Lehigh Gorge State Park to Jim Thorpe, then southeast, past Lehighton. Southeast of Lehighton, it passes through Blue Mountain in a narrow opening called the Lehigh Gap.

From the Lehigh Gap, the river flows southeast to Allentown, where it is joined by Little Lehigh Creek, then northeast past Bethlehem, where it joins the Delaware River in Easton, along Pennsylvania's border with New Jersey.

The PA Gazetteer of Streams shows that the Lehigh River begins as the outflow of Pocono Peak Lake. Flowing south from the south end of the lake (a natural but dammed body of water) it turns west after a mile and receives water from many lakes and ponds as it flows past the borough of Gouldsboro.


The Lehigh River holds many species of fish, such as trout, smallmouth bass, largemouth bass, pickerel, panfish, carp, catfish, Eel and muskellunge (muskie). Trout, both rainbow and brown, in the 18"-20" range are average while some have been caught into the mid to upper 20" range. Smallmouth bass are large in numbers but are of smaller size with most between 8"-14" with an occasional fish from the 18"-21" range. There is an increasing number of muskie being reported within the 30"-52" range. There are both pure and tiger muskie, the usually sterile, hybrid offspring of the true muskellunge (Esox masquinongy) and the northern pike (Esox lucius) being caught in the river.

Over the years since 2005 various groups such as the Lehigh Coldwater Fishery Alliance and the Pennsylvania Fish & Boat Commission have worked with the Army Corps of Engineers to design annual flow plans from the Frances Walter Dam (F.E.W.) to maximize the cold water discharge through the spring and summer. This has helped enhance the population of coldwater species like brown trout to gain a growing naturally reproducing population within the river below F.E.W. dam all the way to Northampton PA.

As of November 2019 the following agencies or groups stock the river with trout.

  • The Five Mile Club - Private stocking club - Stocking Bear Creek to Glen Onoko

White Water Boating

The Lehigh River is a white water river with Class I, II, and III rapids. The most popular section of the Lehigh River for white water rafting, kayaking, and canoeing is through the Lehigh Gorge State Park. The Lehigh Gorge State Park begins at the Francis E. Walter Dam and ends in the town of Jim Thorpe, PA. Several white water outfitters operate guided white water rafting trips in various sections of the river. The first rafting outfitter on the Lehigh River was Whitewater Challengers, which was founded in 1975. Water releases from the Francis E. Walter Dam provide enough water to make the river deep enough for boating. Three popular boating trips on the Lehigh River are:

  • White Haven to Rockport – 8.7 miles
  • Rockport to Glen Onoko – 12.2 miles
  • White Haven to Glen Onoko – 20.9 miles

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