1948 Map of Sonora

About this map

Table Mountain dominates the central landscape of this Gold Country survey, its flat-topped basaltic ridge tracing the ancient riverbeds that once drew miners to Tuolumne County. This map documents a fascinating layered history where 19th-century mining infrastructure meets mid-20th-century water management. Early settlements such as Jamestown, Tuttletown, and Montezuma are surrounded by significant mining operations, including the Harvard Mine and Golden Rule Mine. Literary history is grounded in the terrain at Mark Twain Cabin on Jackass Hill, while the evolution of the landscape is marked by the presence of New Melones Lake and Don Pedro Reservoir. The transition from the era of the Sierra Ditch to the development of modern transport is evident at Yosemite Junction and the Landing Strip near Chinese Station.