
Allentown, Bethlehem, and Easton anchor this mid-1980s topographic study of the Lehigh Valley, documenting the dense urban corridor at the confluence of the Lehigh River and the Delaware River. The industrial and educational foundations of the region are clearly visible, with expansive campuses for Lehigh University and Lafayette College alongside the established rail networks of Conrail and the Lehigh Valley RR. To the north and west, the landscape shifts toward the anthracite region, including Hazleton and the borough of Jim Thorpe, where the terrain is marked by the sharp ridges of Blue Mountain and Pisgah Ridge. This survey captures a transitional moment for the region as it balanced its manufacturing heritage with growing infrastructure, seen in the development surrounding A-B-E Airport and the expanding reservoir systems like Beltzville Lake.
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