History Delaware and Lehigh National Heritage Corridor
1 history 1.1 pre-european trading routes 1.2 18th - 20th centuries: coal mining era 1.3 national heritage area 1.4 d&l trail takes shape 1.5 merger national canal museum history pre-european trading routes the corridor has long been busy crossroads. native american tribes such susquehannock, iroquois, leni lenape, , others traveled through northern region. delaware canal parallels old trading routes. many original native american villages developed here in wilds of pennsylvania drew european settlers in search of opportunity. 18th - 20th centuries: coal mining era weigh lock scales determine tolls, 1873 in 1791, philip grinder found anthracite coal in summit hill, carbon county, pa. coal helped region develop , contributed america’s iron , steel industries. anthracite coal in region known stone coal because of rock-like hardness. anthracite created on millions of years countless layers of sediment compress plant debris swamps until becomes hard. delaware , lehigh national herita...