1961 Map of Dewey

About this map

Big Hole River winds through the southern portion of this landscape, marking the transition between Beaverhead National Forest and Deerlodge National Forest. The settlement of Dewey sits along the river's northern bank, where industrial and infrastructure history is evident in the presence of the Big Hole Dam and the Big Hole Pumping Sta. An Aqueduct and the Old Grade Railroad trace the valley floor, suggesting the importance of water management and transport for the local mining or ranching economy in the mid-20th century.