The Lehigh Gap, is a water gap located in the townships of Lehigh, Washington, Lower Towamensing and East Penn in the Lehigh Valley that was formed by the Lehigh River where it cuts through the Blue Mountain in the state of Pennsylvania in the United States. The gap allows easy travel between Carbon County to the north and Lehigh and Northampton counties to the south of the mountain. One of the more distinctive features of the gap is Devil's Pulpit, a rock formation that reminds hikers of a pulpit. Lehigh Gap is also the name of a village also known as Weider's Crossing and located at the south end of the gap in Lehigh and Northampton Counties.
Pennsylvania Route 248 runs directly through the gap, connecting the two Lehigh Valley cities Allentown and Bethlehem to the smaller Carbon County boroughs of Palmerton, Bowmanstown and Lehighton. State Routes 873 and 145 connect to Route 248 just south of the gap.