|
||
|
|
|
|
This map, issued by the California State Mining Bureau under the supervision of State Mineralogist William Ireland Jr., illustrates the gold quartz mining region surrounding Grass Valley, Nevada City, and Banner Mountain in Nevada County, California.
Compiled in the late 19th century by civil engineer J. B. M’Intosh, the map presents a dense and highly organized view of lode claims and mining operations situated within Public Land Survey System townships T15N, T16N, and T17N, Ranges 8 and 9 East. The region depicted is one of the richest hard-rock gold mining districts in California, with a concentration of mines that had been extensively developed since the 1850s, continuing into the hydraulic and deep quartz mining phases of the later Gold Rush era.
Centered on the urban cores of Grass Valley and Nevada City, the map marks the location and orientation of dozens of named gold quartz mines, each drawn with rectangular outlines and labeled in precise, legible type. Among the prominent operations are the Empire, Idaho, North Star, Pennsylvania, and Eureka mines—some of the deepest and most productive gold mines in the world at the time. Many of these mines are connected by a network of roads, which are lightly sketched and included in the map’s legend, along with the notation of hydraulic works shown in blue on the original print. The surrounding geography, including smaller settlements, ravines, and ridges, is lightly indicated, serving more as a framework for claim location than topographic reference.
Scarce map which accompanied Volume 10 of the California Journal of Mines and Geology.
![[ Climatology ] Map of California Illustrating Its Climatology -- Comparative Area -- Rail Lines -- Compiled From Official and Authentic Sources By The Southern Pacific . . . 1903](https://storage.googleapis.com/raremaps/img/small/82610.jpg)
![[Southeastern Riverside County and Borrego Valley] Indio Special](https://storage.googleapis.com/raremaps/img/small/83488.jpg)
