
Centred on Obsidian Dome, this map extends north to Lee Vining & the southern fringe of Mono Lake, west to Ellery Lake, south to Lake Virginia in the Sierra National Forest & east to Mc Gee Mtn. One of the five maps in this series reguired to cover the High Sierra between the Yosemite Valley & Mt Whitney. John Muir Trail/ Pacific Crest Trail is marked, as well as numerous other local hiking routes.