
Mining operations and high mountain terrain define this 1954 survey of the Deerlodge National Forest region. The settlement of Basin serves as a focal point along the Boulder River, where the Great Northern railroad tracks parallel the river valley. The landscape is heavily marked by the region's mineral history, featuring a dense concentration of named mines such as the Lily-Orphan Boy Mine, Porphyry Dike Mine, and Bullion Mine. These workings are scattered across the slopes of Bison Mountain, Jack Mountain, and Lee Mountain.
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