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Kings Mine, Table Mountain, Parkfield District, Diablo Range, Kings Co., California, USA

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Latitude & Longitude (WGS84): 35° 54' 34'' North , 120° 16' 13'' West
Latitude & Longitude (decimal): 35.90944,-120.27028
GeoHash:G#: 9q6kr1jge
Köppen climate type:Csb : Warm-summer Mediterranean climate

A former Hg occurrence/mine located in the NW¼SW¼SW¼ sec. 20, T23S, R16E, MDM, 0.6 km (0.4 mile) NE of Table Mountain (coordinates of record). Discovered in 1902. Year of first production was 1902. Operated in 1905, 1909-1910, 1915-1917, 1932-1935, 1937-1943, and 1945-1946. Owned by Mrs. Ida Twisselman (1965) and operated by B. Harvey (1941). MRDS database stated accuracy for this location is 10 meters.

Mineralization is veins of coarse, crystalline cinnabar in weakly silicified serpentine and Franciscan sandstone & shale. The ore body is tabular in form, strikes N60E and dips 70N at a width of 8.53 meters and a length of 21.34 meters (dimensions given for one ore body). Controls for ore emplacement included a fault. The footwall is sandstone and the hanging wall is serpentinite. Piercements of rocks of the Franciscan Group, Cretaceous sedimentary rocks, and minor amounts of rocks of Miocene age incorporated into an anticline formed by folding a thick sequence of Cretaceous sedimentary rocks. The piercement was later intruded by serpentine in post-Miocene time. Local alteration includes silicification. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 3 (Coast Ranges and Western Klamath Mountains).

Regional geologic structures include the San Andreas Fault. Local structures include a local fault N60W (anticline, shear zone).

Workings include surface and underground openings with a length of 487.68 meters and an overall depth of 60.96 meters. Caved in 1964.

Production statistics: Year: 1962; period: to 1962: estimated ^10-20 pounds Hg/ton (474 grams/metric ton).

Caved workings and scarce outcrops make it impossible t make any accurate estimates of the reserves of this mine.

Mineral List

Mineral list contains entries from the region specified including sub-localities

7 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

66 - 145 Ma

ID: 3190052
Mesozoic sedimentary rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Siltstone,sandstone,shale

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Jurassic - Middle Jurassic
145 - 174.1 Ma

ID: 2874900
Ultramafic rocks, chiefly Mesozoic, unit 3 (Coast Ranges and Western Klamath Mountains)

Age: Jurassic (145 - 174.1 Ma)

Stratigraphic Name: Josephine Peridotite

Description: Ultramafic rocks, mostly serpentine. Minor peridotite, gabbro, and diabase. Chiefly Mesozoic unit 3

Comments: Coast Range ophiolite, Josephine ophiolite. Ultramafic rocks in Middle to Late Jurassic ophiolites of Coast Ranges and westernmost Klamath Mts.

Lithology: Major:{serpentinite}, Minor:{peridotite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

Localities in this Region
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This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Bradley, W.W. (1916b), Fresno and Kings Counties: California Mining Bureau. Report 14: 529.
Bailey, Edgar H. (1942), Quicksilver deposits of the Parkfield district, California: USGS Bulletin 936-F: 143-169.
Jennings, Charles William (1953), Mines and minerals of Kings County, California: California Journal of Mines and Geology (Report 49): 49(3).
Southern Pacific Company (1964b) Minerals for Industry, Summary of Geological Survey 1955 - 1961: Vol III - 242 pp., Southern California, Southern Pacific Co., San Francisco, CA 94105
Southern Pacific Company (1964b) Minerals for Industry, Vol III - Southern California, 242 pp.: 14-15.
Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 259.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 115, 181, 197.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10103800 & 10236305.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060310003.
Bailey, E. H., USGS, personal files data.

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