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Gold: the California story. Berkeley and Los Angeles: University of California Press. ISBN 0-520-21547-8. Rawls, James J. and Orsi, Richard J. (eds.) (1999). A golden state: mining and economic development in Gold Rush California (California History Sesquicentennial Series, 2). Berkeley and Los Angeles: University of California Press.
The Empire Mine is on the National Register of Historic Places, a federal Historic District, and a California Historical Landmark. Since 1975 California State Parks has administered and maintained the mine as a historic site. The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California". [3]
It was discovered in the early 1850s, during the California gold rush. The California Mother Lode is a zone from 1.5 to 6 kilometres (0.93 to 3.73 mi) wide and 190 kilometres (120 mi) long, between Georgetown on the north and Mormon Bar on the south. The Mother Lode coincides with the suture line of a terrane, the Smartville Block. [4]
The Phillip 66 refinery in Wilmington was built in 1919 and produces produces gasoline, diesel and aviation fuels, which are distributed by pipeline and by truck to customers in California, Nevada ...
A declining percentage of the oil supplied to California's refineries is produced in California, down to 23.4% in 2023 from 51.0% in 1993, thirty years earlier. [17] 15.9% of oil supplied to California's refineries came from Alaska in 2023, and 60.7% came from foreign sources. [17]
registered as California Historical Landmark #786. Golden Fleece Tunnel 39°11′09″N 120°37′02″W / 39.185735°N 120.617152°W / 39.185735; -120.
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