
The Gwinn district of Marquette County appears here during a significant era of industrial development, where the iron mining industry and the Chicago and Northwestern railroad intersect. This 1932 field examination documents the structured company towns of the region, including Princeton, Austin, and New Swanzy, clustered near the banks of the Escanaba River East Branch. The landscape is heavily defined by the extraction economy of the Upper Peninsula, with several active sites like the Stephson Iron Mine and Francis Iron Mine positioned along the specialized rail corridors of the Lake Superior and Ishpeming line.
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1932 · Helena NW
USGS Topo · 1:31,680
1932 · Helena NE
USGS Topo · 1:31,680
1932 · Harvey NW
USGS Topo · 1:31,680
1932 · Harvey SE
USGS Topo · 1:31,680
1932 · Harvey NE
USGS Topo · 1:31,680
1951 · Helena NE
USGS Topo · 1:31,680
1951 · Helena NW
USGS Topo · 1:31,680
1952 · Sands
USGS Topo · 1:24,000
1952 · Ishpeming
USGS Topo · 1:62,500
1952 · Gwinn
USGS Topo · 1:62,500