Lehigh Gap | |
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TheShawangunk Formation at Lehigh Gap in October 2008 | |
![]() Interactive map of Lehigh Gap | |
| Coordinates:40°46′36″N75°36′30″W / 40.77667°N 75.60833°W /40.77667; -75.60833 | |
| Region | Lehigh Valley |
| State | Pennsylvania |
| Country | United States |
TheLehigh Gap orLehigh Water Gap is awater gap located in the townships ofLehigh,Washington,Lower Towamensing, andEast Penn in theLehigh Valley andCoal Region regions of easternPennsylvania. It was formed by theLehigh River, where it cuts through theBlue Mountain inPennsylvania.
The gap allows easy travel betweenCarbon County to the north andLehigh andNorthampton counties to the south of the mountain. One of the gap's more distinctive features is Devil's Pulpit, a rock formation that reminds hikers of achurch pulpit.
Lehigh Gap is also the name of a village once known asWeider's Crossing at the south end of the gap in Lehigh and Northampton Counties.

PA Route 248 runs directly through the gap, connecting the two Lehigh Valley citiesAllentown andBethlehem to the smallerCarbon County boroughs ofPalmerton,Bowmanstown andLehighton. PA Routes873 and145 connect toPA Route 248 just south of the gap.
Besides vehicular travel, the gap also provides a crossing through the mountain for hikers on theAppalachian Trail. Appalachian Thru-hikers call this Dante's inferno because it is a very exposed rock scramble. TheDelaware and Lehigh Heritage Corridor Trail also intersects Lehigh Gap.
Four railroad companies once had trackage (owned or leased) through the Lehigh Gap. TheLehigh and New England Railroad used to have a bridge crossing theLehigh River within the gap. The bridge was abandoned in 1961 and torn down in 1967, but its foundations on each side of the river are still visible as are telegraph poles.
TheLehigh Valley Railroad had its mainline, theLehigh Line, on the south side of the Lehigh River. TheLehigh and Susquehanna Railroad's mainline was on the north side of the Lehigh River; the Lehigh and Susquehanna was leased to theCentral Railroad of New Jersey and labeled the operations of the lease as the "Lehigh and Susquehanna Division".
Today theLehigh Valley Railroad's mainline, the Lehigh Line, runs on the north side of theLehigh River rather than on the south side, as the majority of the Lehigh and Susquehanna Railroad's mainline became part of the Lehigh Line. The Lehigh Line's absorption of the majority of the Lehigh and Susquhanna mainline caused some original trackage to break away from the Lehigh Line and became separate rail lines now operating as branch lines, including the Lehigh Line's former trackage on the south side of the Lehigh River. The Lehigh Line's original Lehigh Gap trackage which was on the south side and now operating as a separate rail line on its own was later abandoned and was removed byConrail in 1984.
With the Lehigh Line being the surviving rail line even though it now runs on the north side via the former Lehigh and Susquehanna Railroad mainline trackage it got, the Lehigh Line is now owned byNorfolk Southern Railway (chartered in 1894 as theSouthern Railway and is owned by theNorfolk Southern Corporation) andCanadian Pacific Railway (owned byCanadian Pacific Railway Limited) has trackage rights on the Lehigh Line so that it can reach the major citiesPhiladelphia andNew York City.

In 2002, the Wildlife Information Center, since renamed Lehigh Gap Nature Center,[1] purchased more than 750 acres (3.0 km2) near Lehigh Gap. Their goal is to restore the wildlife along the Kittatinny Ridge. From 1898 to 1980, the New Jersey Zinc Company emitted sulfur dioxide at rates of up to 3,600 pounds per hour, killing plant life and animal habitats. Twenty years later, a noticeable lack of tree density remains on the Palmerton side of the gap.[2]
The Lehigh Gap Nature Center currently includes The Osprey House on theSlatington side of the river. The nature center works closely with colleges and universities on various wildlife-oriented research projects. The center also offers several clubs for young naturalists. The nature center is home to approximately 15 miles of hiking trails, open to the public from dawn to dusk.