1948 Map of Tuolumne

About this map

Tuolumne and the surrounding Sierra foothills define this mid-century landscape, where mining and timber interests shaped the early 20th-century development of the Stanislaus National Forest. The map captures a critical era of infrastructure, notably the path of the Hetch Hetchy Aqueduct and the presence of the Arastraville Canal. Local industry is evidenced by numerous workings such as the Ophir Mine, Aqua Caliente Mine, and Jigger Bill Mine, while community life centers around Groveland, Arastraville, and Second Garrotte. Genealogists will find valuable markers in the Cherokee Cem and Groveland Cem, alongside family-named locations like Murphy Ranch and Matson Ranch. The terrain is marked by significant hydrological features including the North Fork Tuolumne River and Clavey River, which descend through Paper Cabin Ridge and Duckwall Ridge toward the Merced River at the southern boundary.