
Allentown dominates the eastern edge of this mid-century landscape, showing the suburban expansion of Salisbury and South Whitehall as residential developments like Parkside Courts began to fill the spaces between older villages. The map captures a moment when the regional transportation network was evolving, centered on the Pennsylvania Turnpike Northeast Extension cutting through the heart of the Lehigh Valley. Despite this modernization, the area's industrial roots remain visible at the Lock Ridge Park and Furnace Museum in Alburtis, preserving the local iron heritage.
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7 editions found
1888 · Quakertown
USGS Topo · 1:62,500
1890 · Quakertown
USGS Topo · 1:62,500
1894 · Allentown
USGS Topo · 1:62,500
1894 · Quakertown
USGS Topo · 1:62,500
1902 · Boyertown
USGS Topo · 1:62,500
1902 · Slatington
USGS Topo · 1:62,500
1937 · Allentown West
USGS Topo · 1:48,000
1939 · Allentown
USGS Topo · 1:62,500
1942 · Norristown
USGS Topo · 1:125,000
1942 · Allentown West
USGS Topo · 1:62,500