{"product_id":"california-and-nevada-in-1871-virginia-city-new-almaden-sacramento","title":"California and Nevada in 1871 - Virginia City, New Almaden, Sacramento","description":"\u003cp\u003eEdmond Guillemin-Tarayre compiled this metallurgical map of California and Nevada in 1867, published in Paris in 1871 as the third of the French Commission Scientifique du Mexique's related plates on the region alongside the mission's geological and base maps. Using a seven-unit legend, the map portrays the region's gold-, silver-, copper-, and mercury-bearing belts along with its lignite basins, bituminous shale deposits, and mineral springs, an unusually early and thorough attempt to chart the economic geology of California and Nevada as a single integrated system. A companion colored plate at a scale of roughly one to one million, titled a geological sketch map of the metalliferous regions, covers central California specifically and was compiled from the observations of American geologists Tyson and Trask, members of California's own Whitney Survey, and the French mission's own reconnaissance. A related plate at the same scale covers Santa Barbara, Los Angeles, and San Diego Counties under the heading of the state's \"oil region,\" extending the mission's economic survey south.\u003c\/p\u003e\u003cp\u003eGold- and silver-bearing belts run through the map's Sierra Nevada and Comstock coverage, tracing the mineral wealth that had drawn tens of thousands of prospectors to California and Nevada over the preceding two decades. The New Almaden quicksilver mine is recorded among the map's illustrated cross-sections, one of the most productive mercury mines in the country and essential to the gold and silver refining process across the entire region. Copper deposits and lignite basins round out the map's seven-category legend, evidence of a mining economy already diversifying well beyond gold and silver by the time this plate was compiled. Mineral springs are marked as their own distinct category, reflecting contemporary interest in the health and commercial value of the region's natural springs alongside its metal deposits.\u003c\/p\u003e\u003cp\u003eThis map is a fitting choice for a California or Nevada family with ties to the state's historic mining economy, someone drawn specifically to the New Almaden mercury mining story, or a collector interested in the economic and resource-mapping side of nineteenth-century cartography. Alongside the Vault's companion geological and base maps from the same 1871 French publication, this metallurgic sheet stands out for translating raw geology into the practical language of mineral wealth that drove California and Nevada's economy at the time. It's available unframed in a full range of sizes, from a compact study print to a larger statement piece.\u003c\/p\u003e","brand":"TheMapVault","offers":[{"title":"16x20 inch - UNFRAMED","offer_id":58529715978571,"sku":"1816-16x20","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"A2 (42x60cm) - UNFRAMED","offer_id":58529716011339,"sku":"1816-A2","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"18x24 inch - UNFRAMED","offer_id":58529716044107,"sku":"1816-18x24","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"50x70 cm - UNFRAMED","offer_id":58529716076875,"sku":"1816-50x70","price":30.0,"currency_code":"GBP","in_stock":true},{"title":"A1 (60x84cm) - UNFRAMED","offer_id":58529716109643,"sku":"1816-A1","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"24x32 inch - UNFRAMED","offer_id":58529716142411,"sku":"1816-24x32","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"70x100 cm - UNFRAMED","offer_id":58529716175179,"sku":"1816-70x100","price":50.0,"currency_code":"GBP","in_stock":true},{"title":"75x100 cm - UNFRAMED","offer_id":58529716207947,"sku":"1816-75x100","price":50.0,"currency_code":"GBP","in_stock":true},{"title":"A0 (84x119cm) - UNFRAMED","offer_id":58529716240715,"sku":"1816-A0","price":55.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/2456\/5323\/files\/SKU1816.jpg?v=1789780718","url":"https:\/\/www.themapvault.com\/products\/california-and-nevada-in-1871-virginia-city-new-almaden-sacramento","provider":"TheMapVault","version":"1.0","type":"link"}