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1935 Map of MacKay

Name: 1935 Topographic Map of MacKay
Creator: U.S. Geological Survey
Published: 1935
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1935

About this map

Mackay serves as the primary hub in this mid-1930s survey, situated along the Big Lost River where a complex network of irrigation infrastructure including the Sharp Ditch and Burnett Ditch supported local agriculture. The high-altitude landscape is defined by the heavy industry of the era, with prominent operations such as the Star O Hope Mine, Leadbelt Mine, and Golden Chariot Mine scattered across the surrounding peaks and basins.

Evidence of early rural infrastructure is visible through the positioning of the Fish Hatchery and the Mackay Power and Light Co Plant near the Mackay Dam. Remote outposts like the Grouse PO and Rosenkranze Ranch reflect the isolated nature of Custer and Butte County settlements during this period. The survey also documents the intersection of public lands, including portions of the Sawtooth National Forest and Salmon National Forest, highlighting the region's transition from resource extraction to managed wilderness.