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1907 Map of Johnstown

Name: 1907 Topographic Map of Johnstown
Creator: U.S. Geological Survey
Published: 1925
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1925

About this map

Johnstown and its surrounding coal and steel valleys are depicted at a pivotal industrial moment during surveys conducted between 1901 and 1904. The landscape is defined by the sharp convergence of the Conemaugh River, Little Conemaugh River, and St Clair Run, where dense urban development clings to the narrow riverbanks. Transportation networks including the Pennsylvania R R and the Philadelphia and Pittsburgh Turnpike highlight the region's importance as a mountain transit corridor.

Upstream from the city, the site of the South Fork Reservoir and the borough of South Fork stand as significant landmarks along the river's path. Smaller mining and industrial settlements like Nanty Glo, Vintondale, and Conemaugh Furnace appear tucked into the drainages of Blacklick Creek and the South Fork Conemaugh River. The inclusion of the Old Portage R R Tunnel offers a specific connection to earlier 19th-century engineering efforts to cross the formidable Laurel Ridge.