Report of J. Ross Browne on the Mineral Resources of the States and Territories West of the Rocky Mountains. [1867].

abundant acres amount average bed rock branch bullion California cañon cement cent Central Pacific railroad channel City claim coal coast Columbia commenced Comstock lode contains copper cost county seat creek deposits depth distance district ditch drifts east eastern erected estimated Eureka expenses extends feet deep feet long feet wide Flat flume fork galena Gold Hill granite grass Grass Valley gravel gulch inches iron labor lake land Lander county located lode metal miles mill miners mines months mountains nearly Nevada obtained opened Oregon Pacific placer mines places portion pounds present production profit quantity quartz railroad range Reese river rich river road salt San Francisco seams shaft side Sierra Sierra Nevada silver slate sluice springs square miles stamps Stanislaus river streams sulphurets supply surface Territory thick timber tons town tunnel valley vein Walla-Walla washed width yield Yuba