1953 Map of Mt Abbot

About this map

The High Sierra crest forms a dramatic backdrop for this mid-century survey of the Mt Abbot quadrangle, documenting the intersection of Inyo National Forest and Sierra National Forest. The landscape is defined by the high-altitude drainage basins of the Silver Divide, where numerous glacial lakes like the Lake of the Lone Indian and Graveyard Lakes feed into the South Fork of the San Joaquin River. Infrastructure for water management and mining is evident even in this remote terrain, notably the Hooper Diversion Dam and the Fish and Shovel Mine. The legendary John Muir Trail winds through the central portion of the map, passing below massive peaks such as Seven Gables and Mt Hilgard. This map captures a period of active water monitoring and resource extraction within the granite basins of The Pinnacles and Vermilion Cliffs.