1966 Map of Boulder

About this map

Boulder and its rugged foothills are captured during a period of significant expansion, where urban development meets long-standing mining and forest boundaries. The city core is dense with institutional landmarks, dominated by the University of Colorado and numerous neighborhood schools like Mapleton Sch and Highland Sch. To the west, the landscape rises sharply into the Roosevelt National Forest, where a legacy of hard-rock mining is evident at the Golden Age Mine and Poorman Mine. The map traces the essential water infrastructure of the era, from the Boulder Filtration Plant to the Silver Lake Ditch, reflecting the engineering required to support a growing mountain community. Small settlements and former mining camps like Salina, Crisman, and Springdale remain distinct along the winding canyon roads, providing a clear look at the historic settlement patterns of the Front Range.