
The industrial and academic corridor of Bethlehem and Hellertown is captured here during a period of transition, where the heavy infrastructure along the Lehigh River meets the expanding campus of Lehigh University. The northern reaches are dominated by the Lehigh Canal and dense residential blocks like South Terrace, while the southern landscapes of Lower Saucon and Springfield remain more dispersed. A notable geological landmark, Lost River Caverns, is situated near the heart of Hellertown, highlighting the unique subterranean features of the Saucon Valley. Farther south, the map reveals a collection of smaller settlements such as Springtown, Pleasant Valley, and Leithsville, many of which grew around early rural churches like St Johns Ch and schools like the Salem Sch. The map tracks the expansion of Interstate 78 & U.S. 22 as it bypasses the older town centers, signaling the shift in regional transportation during the mid-20th century.
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