1992 Map of Koip Peak

About this map

Mono Pass and its surrounding peaks define this high-altitude landscape along the border of Yosemite National Park and the Ansel Adams Wilderness. The map records a history of high-country mineral exploration, with several prospects, a Prospect Adit, and multiple Mine Shafts clustered near Summit Lake. This industrial imprint contrasts with the vast hydrographic network of the Sierra Nevada, including the headwaters of Rush Creek and the notable Gem Lake and Agnew Lake reservoirs. The terrain is marked by significant alpine crossings such as Donohue Pass and Koip Peak Pass, which facilitate travel between the high ridges of the Kuna Crest and Koip Crest. Along the eastern edge, a Gaging Sta on Rush Creek indicates the importance of water management in this high-elevation watershed during the late twentieth century.