1957 Map of Mariposa

About this map

Yosemite National Park and the central Sierra Nevada dominate this landscape, showing the region as it transitioned into the early 1970s. The map illustrates a complex water management and power infrastructure, evidenced by major reservoirs like Hetch Hetchy Res, Huntington Lake, and Millerton Lake. While much of the terrain is protected within the Sierra National Forest and Inyo National Forest, industrial footprints remain visible at the Pine Creek Mine and Mount Morgan Mine.