Mine detail: Folsom

Previously called 'American River DistrictCapital Dredging Co.Natomas Co.Folsom-Natoma District'

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Location: Sacramento County, California, United States, North America
Lat / long: 38.61184, -121.22075
dep_id: 10103627
mrds_id: M045265
Commodity type: metallic
Major mineral: Gold
Minor mineral: Platinum, Osmium, Iridium
Operation type: Unknown
Deposit type: Stream Placer
Production size: Medium ammount of material produced
Development status: Past Producer
ore: Gold
orebody_fm: TABULAR
model: 119: Placer Au-PGE
conc_proc: Entrapment By Irregularities In Stream Bed Or Deposition In Low-Energy Part Of Stream
ore_ctrl: Stream Hydraulics
Reporter: Blair, Will N., Peterson, Jocelyn A.
hrock_unit: Laguna Formation (Silt, Sand, Gravel)
hrock_type: Gravel
tectonic: Base Of Sierra Nevada Foothills
Year first produced: 1848
yr_lst_prd: 1962
disc_yr: 1860
References:
  • Deposit:: LOGAN, C.A. 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 27-29.
  • Deposit:: CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 47-49.
  • Deposit:: CARLSON, D.W., 1955, MINES AND MINERAL RESOURCES OF SACRAMENTO COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 51, NO. 2, P. 137, 140-142, 186, PL. 2.
  • Deposit:: CLARK, W.B., 1970, PLATINUM: CALIFORNIA DIVISION OF MINES AND GEOLOGY MINERAL INFORMATION SERVICE, V. 23, NO. 6, P. 115-123.
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