2012 Map of Hetch Hetchy Reservoir

About this map

Hetch Hetchy Reservoir dominates this landscape, where the inundated valley floor is surrounded by prominent granite features like Smith Peak and Le Conte Point. The hydrology of this portion of Tuolumne County is marked by the convergence of Tiltill Cr and Rancheria Cr, which feed into the reservoir from the north. The rugged transition between the high sierra and the canyon floor is visible through landmarks such as Rancheria Falls and the Grand Canyon of the Tuolumne River. In the southern reaches, the Middle Tuolumne River winds near Harden Lake and the open flats of Harden Gardens. The map also captures historical transportation corridors, including portions of the Old Tioga Rd and White Wolf Rd, which provide access to this high-elevation wilderness.