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1905 Map of Lake Hopatcong

Name: 1905 Topographic Map of Lake Hopatcong
Creator: U.S. Geological Survey
Published: 1921
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1921

About this map

Lake Hopatcong serves as the centerpiece of this northern New Jersey survey, surrounded by islands like Halsey Island and early lakeside settlements including Hopatcong and Landing. The landscape is defined by its industrial and transportation complexity at the start of the 20th century. A dense network of rail lines, such as the Delaware Lackawanna and Western Railroad and the High Bridge Branch, connects iron-rich hills and depots.

Evidence of early military and industrial activity is prominent near the Sparta Mountains, specifically the U.S. Navy Powder Depot Railroad and landmarks like Middle Forge and Picatinny Peak. To the south and east, the map captures the transition from mining and milling hubs like Wharton and Dover to the smaller crossroads of Calais Crossroad and Brookside. The course of the Musconetcong River and Rockaway River provides the hydraulic backbone for the region's early growth before modern suburban development transformed the Morris and Sussex county lines.