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1956 Map of Delta

Name: 1956 Topographic Map of Delta
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

The Mason and Dixon Line serves as the central axis of this landscape, marking the historic boundary between Pennsylvania and Maryland. This 1950s survey captures the interconnected border towns of Delta and Cardiff, where the region's industrial character is defined by numerous Quarry sites and the prominent Slate Ridge. Transportation networks are well-established, with both the Pennsylvania Railroad and the Maryland and Pennsylvania RR cutting through the terrain to support the local slate industry.

Rural community life is anchored by institutions such as the Slate Ridge School and several country churches, including Slateville Ch and Mt Nebo Ch. In the south, the landscape transitions toward Dublin and Scarboro, while the eastern edge is defined by the Conowingo Reservoir on the Susquehanna River. This edition includes purple photorevisions from the late 1980s, showing the expansion of residential roads and the Broad Creek Memorial Scout Camp near Deep Run.