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Gold ore deposits reside in the quartz veins, ranging from 3 to 7 ounces per ton. The Empire Vein outcrops to the east on a north–south strike , dipping at a 35-degree angle to the west. The vein was mined with inclined shafts following dip, with horizontal shafts (drifts) every 300–400 ft (90–120 m) along strike.
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.
Oil company Phillips 66 announced Wednesday that it plans to shut down a Los Angeles-area refinery by the end of 2025, citing market concerns. The company said it will remain operating in the state.
The 1929 Richfield Building in Los Angeles, designed by Morgan, Walls & Clements. It was demolished in 1969 to make way for the new ARCO Plaza. Richfield Oil sponsored Disneyland's model freeway Autopia from 1955 to 1970. [10] The company merged with Atlantic Refining to form Atlantic Richfield Corp, later known as ARCO, in 1966.
The closure will leave the state with eight major refineries — three in Bay Area and five in the Los Angeles area, operated by Chevron, Valero and other refiners — as well as several smaller ones.
The Beverly Hills Oil Field is a large and currently active oil field underneath part of the US cities of Beverly Hills, California, and portions of the adjacent city of Los Angeles. Discovered in 1900, and with a cumulative production of over 150 million barrels of oil, it ranks 39th by size among California's oil fields, and is unusual for ...
California's attempt to manage a smooth transition away from gasoline just got roughed up with this week's decision by Phillips 66 to shutter its refinery in Wilmington next year, wiping out more ...
The Monte Cristo Gold Mine (Spanish for Mountain of Christ Gold Mine) is a gold mine in the San Gabriel Mountains near Los Angeles, California, USA. The Monte Cristo Gold Mine is part of the quest for mineral wealth in the San Gabriels. Many of the older tunnels and shafts are closed, and the 100-year-old machinery is no longer in operation.