
Perkiomen Creek defines the central axis of this Montgomery County landscape, winding south toward its confluence with the Schuylkill River near Mont Clare. The 1960s suburban expansion is evident in the purple-shaded revisions around Trooper and Jeffersonville, yet the region's institutional character remains prominent. The massive footprint of the State Correctional Institution at Graterford occupies a significant portion of the northern terrain, while the campus of Ursinus College anchors the borough of Collegeville. Local history and genealogy are well-represented by older rural landmarks such as Keelys Ch Cem and the Iron Bridge Chapel in Rahns. The map also illustrates the transition from agricultural use to modern infrastructure, showing the Perkioman Valley Airport and the complex road network of Upper Providence and Lower Providence townships before the full onset of late-century development.
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5 editions found
1888 · Quakertown
USGS Topo · 1:62,500
1890 · Quakertown
USGS Topo · 1:62,500
1894 · Quakertown
USGS Topo · 1:62,500
1894 · Norristown
USGS Topo · 1:62,500
1895 · Norristown
USGS Topo · 1:62,500
1896 · Norristown
USGS Topo · 1:62,500
1902 · Boyertown
USGS Topo · 1:62,500
1906 · Phoenixville
USGS Topo · 1:62,500
1942 · Norristown
USGS Topo · 1:125,000
1943 · Telford
USGS Topo · 1:31,680