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The Gold Country (also known as Mother Lode Country) is a historic region in the northern portion of the U.S. state of California, that is primarily on the western slope of the Sierra Nevada. It is famed for the mineral deposits and gold mines that attracted waves of immigrants, known as the 49ers , during the 1849 California Gold Rush .
Coastal California is heavily influenced by east–west distances to the dominant cold California Current as well as microclimates.Due to hills and coast ranges having strong meteorological effects, summer and winter temperatures (other than occasional heat waves) are heavily moderated by ocean currents and fog with strong seasonal lags compared to interior valleys as little as 10 mi (16 km) away.
The State Mining Bureau was renamed the Division of Mines and Geology in 1862. Its pseudonym, the California Geologic Survey, was established in January 2002. [15] In 1869, George Davidson, an assistant coast surveyor, compiled the book Pacific Coast: Coast Pilot of California, Oregon, and Washington Territory. The 262-page volume is complete ...
Lawson's map of the Gold Regions is the first map to accurately depict California's Gold Regions. Issued in January 1849, at the beginning of the California gold rush, Lawson's map was produced specifically for prospectors and miners. A Correct Map of the Bay of San Francisco and the Gold Region from actual Survey June 20th. 1849 for J.J. Jarves.
American period: An enlargeable map of the United States after the Treaty of Guadalupe Hidalgo in 1848. American period: An enlargeable map of the United States after the Compromise of 1850. American period: The Nataqua Territory extension into California (light yellow), and Nevada's Roop County claim (light yellow area plus area outlined in ...
Here are maps showing some of Southern and Central California's most populated areas within a tsunami hazard zone, as determined by the California Geological Survey. The yellow section indicates ...
"On the night of June 6, 1853, the clipper ship Carrier Pigeon ran aground 500 feet off shore of the central California coast. The area is now called Pigeon Point in her honor. The Carrier Pigeon was a state-of-the art, 19th Century clipper ship. She was 175 feet long with a narrow, 34 foot beam and rated at about 845 tons burden.
Because the gold in the California gravel beds was so richly concentrated, the early forty-niners simply panned for gold in California's rivers and streams, a form of placer mining. [ 10 ] [ 11 ] However, panning cannot take place on a large scale, and industrious miners and groups of miners graduated to placer mining " cradles " and "rockers ...