Latimer Gulch Mine (Benson Gravel Mine), San Andreas, San Andreas Mining District, Calaveras County, California, USAi
Regional Level Types | |
---|---|
Latimer Gulch Mine (Benson Gravel Mine) | Mine |
San Andreas | - not defined - |
San Andreas Mining District | Mining District |
Calaveras County | County |
California | State |
USA | Country |
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Latitude & Longitude (WGS84):
38° 12' 50'' North , 120° 43' 49'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
San Andreas | 2,783 (2011) | 4.8km |
Valley Springs | 3,553 (2011) | 9.0km |
Mokelumne Hill | 646 (2011) | 9.8km |
Rancho Calaveras | 4,489 (2018) | 14.7km |
Jackson | 4,649 (2017) | 15.5km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
Club | Location | Distance |
---|---|---|
Amador County Gem & Mineral Society | Sutter Creek, California | 21km |
Calaveras Gem & Mineral Society | Angels Camp, California | 23km |
Mindat Locality ID:
75475
Long-form identifier:
mindat:1:2:75475:1
GUID (UUID V4):
81e03734-f8df-42a9-a5f0-8ba6922b3f5a
A former placer Au occurrence/drift mine located in sec. 11, T4N, R11E, MDM, about 5 km NW of San Andreas, along Latimer Gulch (7 road miles NE of Valley Springs). MRDS database stated accuracy for this location is 500 meters.
Mineralization is a placer Au deposit reputedly located on the Kreamer and/or Deep Blue Lead plaeochannels, which are said to course W on this property. The average thickness of the gravel is 5 feet. The gravel is cemented together by sulfides. The values were found as free gold and in sulfides. Large boulders occur here. The bedrock is lava. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains) and/or Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings comprised of a 500 foot long tunnel driven W, followed by a flat 200 foot incline S, from which there is a 150 foot drift W, followed by a 150 foot drift SW. All work was done on the Benson "flow," a small channel about 100 feet above the Deep Blue paleochannel.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Gold Formula: Au Description: Placer material found as free Au & in sulfides in a paleochannel. |
Gallery:
Other Databases
Link to USGS MRDS: | 10028736 |
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060090235