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1972 Map of Unity Reservoir

Name: 1972 Topographic Map of Unity Reservoir
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

Unity Reservoir dominates the southern landscape of this Baker County study, where the Burnt River and its various forks converge. The map documents a rugged timber and ranching environment within the Whitman National Forest, characterized by numerous high-elevation springs such as Curran Mtn Spring and Derringer Spring.

A notable historical engineering feature is the China Ditch, which traverses the central terrain, reflecting the area's legacy of hydraulic management. Small-scale industry and early settlement are evidenced by Martins Mill and the King Ranch, while the presence of a Cem and Unity Lake State Park indicates the transition from pioneer enterprise to modern recreation. The confluence of Pine Creek and Cottonwood Creek in the eastern sector, overlooked by the Cottonwood Buttes, shows the complex drainage patterns that defined local land use and boundary lines.