
Mining operations dominate the narrow canyons and high ridges of the Silver Valley at the start of the 20th century. The intense industrial development of the region is centered on Wallace, with a dense network of claims and infrastructure extending toward Kellogg and Mullan. The map documents a complex subterranean landscape, naming massive operations like the Bunker Hill and Sullivan Mine and the Tiger-Poorman Mine, alongside critical ventilation and access points such as the Kellogg Tunnel. Transportation corridors follow the water, with the Northern Pacific Railway and the Oregon Railroad & Navigation Co. competing for space along the South Fork Coeur d'Alene River. High-altitude features like Sunset Peak and Stevens Peak overlook a landscape of gulches and passes, including Thompson Pass on the border with Montana, where the extraction of lead, silver, and zinc transformed the Coeur d'Alene Mountains into a global industrial hub.
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This is the sole edition of this map. No revisions or reprints were ever made.
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