{"product_id":"grass-valley-photo-site-historic-empire-mine-now-state-park","title":"Grass Valley, CA Photo - The site of The Historic Empire Mine, Now a State Historic Park in Grass Valley, California","description":"\u003cp\u003eThe site of the historic Empire Mine, now a state historic park in Grass Valley, California. The Empire Mine was the richest hard-rock mine in the State of California, producing 5.8 million ounces of gold in its operating history of 106 years (1850-1956). George Roberts, the original discoverer of the gold soon sold his interest and by 1869 William Bourn Sr. owned controlling interest. The Bourn family maintained control of the mine until 1929 when it was sold to Newmont Mining. It ceased operation in 1956. In 1975 the state purchased the surface property as the Empire Mine State Historic Park.\u003c\/p\u003e\u003cp\u003eCarol M. Highsmith (born 1946) is a photographer, author, and publisher who has photographed all 50 of the United States, the District of Columbia, and Puerto Rico for 30 years. She specializes in documenting architecture, ranging from the monumental to the everyday and whimsical. Highsmith is donating her life ’s work of more than 100,000 images, copyright-free, to the Library of Congress, which established a rare one-person archive. Out of 14 million images, the Carol M. Highsmith collection is featured in the top six alongside of Mathew Brady and Dorethea Lange. Credit line: Photographs in the Carol M. Highsmith Archive, Library of Congress, Prints and Photographs Division.\u003c\/p\u003e\u003cp\u003eCredit line: The Jon B. Lovelace Collection of California Photographs in Carol M. Highsmith's America Project, Library of Congress, Prints and Photographs Division.\u003c\/p\u003e","brand":"Historic Pictoric","offers":[{"title":"8in x 12in","offer_id":44891853226147,"sku":"H23409_0812__PH07","price":24.99,"currency_code":"USD","in_stock":true},{"title":"16in x 24in","offer_id":44891853324451,"sku":"H23409_1624__PH07","price":49.99,"currency_code":"USD","in_stock":true},{"title":"24in x 36in","offer_id":44891853422755,"sku":"H23409_2436__PH07","price":59.99,"currency_code":"USD","in_stock":true},{"title":"30in x 44in","offer_id":44891853521059,"sku":"H23409_3044__PH07","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0414\/5437\/0979\/products\/H23409_1wmrk.jpg?v=1599379509","url":"https:\/\/historicpictoric.com\/products\/grass-valley-photo-site-historic-empire-mine-now-state-park","provider":"Historic Pictoric","version":"1.0","type":"link"}