The Forbestown Consolidated Gold Mines is a gold mine located in Butte county, California at an elevation of 1,801 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 1,801 Feet (549 Meters)
Commodity: Gold
Lat, Long: 39.53528, -121.26750
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Forbestown Consolidated Gold Mines MRDS details
Site Name
Primary: Forbestown Consolidated Gold Mines
Secondary: Gold Bank Consolidated Quartz
Commodity
Primary: Gold
Secondary: Silver
Tertiary: Copper
Location
State: California
County: Butte
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Form: LENSES
Structure
Type: L
Description: A Large Stock Of Granite Lies One 1 Mile North, And Gabbrodiorite 1 Mi. South
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: FREE GOLD SAID TO BE $1.50/TON, SULFIDES FORMED 2-7% OF ORE CARRIED BALANCE. IN 1890, CON. WAS 7% OF ORE, AND CARRIED $85 IN GOLD, 9.5 OZ. AG/TON. IN 1894, IT WAS 2-3% OF ORE, YIELDING $40/TON IN AG, $20/TON IN GOLD. ELSEWHERE, IT WAS SAID TO BE $150/TON.
Materials
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Workings): GOLD BANK MINE WORKED PREVIOUS TO 1887. PRINCIPAL ACTIVITY 1888-1904. EARLIER OPERATIONS THROUGH ADITS AND INCLINE. ADIT AT ELE. OF 1800 FT. RUNS SW, CUTTING FISSURE 1275 FT. FROM PORTAL. AT THIS PT., RAISE TO BOTTOM OF SHAFT, INCLINED DEPTH BEING 1600 FT. ON DIP AT ADIT. ADIT CONTINUED FOR 2500 FT. 9 LEVELS RUN BETWEEN SHAFT COLLAR AND DRAIN ADIT. 5 EARLIER ADITS RUN ON E. SLOPE HILL. VEIN STOPED FOR INCLINED DEPTH OF 1850 FT. ON DIP. THIRD AND SEVENTH LEVELS 1100 FT. LONG. TOTAL OF 2300 FT. EXPLORED ON STRIKE OF VEIN. LARGEST STOPE ON GOLD BANK (E. SIDE OF SHAFT) 450 FT. ON STRIKE BY 600 FT. ON DIP. STOPED WIDTH WHERE SEEN, BETWEEN LEVELS 8 AND 9 VARIED FROM 3-11 FT. GOLDEN QUEEN CLAIMS WORKED FROM 300 FT. LEVEL TO SURFACE. STOPING ON HANGING WALL SIDE. WAS THOUGHT THAT LARGE BLOCKS OF ORE COULD HAVE BEEN FOUND ON FOOTWALL SIDE.
Comment (Geology): ROCK FORMING HANGING WALL OF GOLD BANK VEIN IS HARD, DENSE, FINE-GRAINED, DARK GREEN DIORITE, AND BLOCKY RATHER THAN SCHISTOSE. FOOTWALL IS SYENITIC.
Comment (Deposit): INCLUDED 4 CLAIMS OF GOLD BANK MINE AND MILLSITE (NW 1/4 11 AND SW 1/4 2), GOLDEN QUEEN, 2 CLAIMS ADJOINING GOLD BANK ON WEST, GOLDEN KING (SEC. 1 AND N 1/2 OF NW 1/4 12), OROVILLE NO. 1 AND NO. 2 PLACERS, SHAKESPEARE MINE, MOSTLY IN YUBA COUNTY, E 1/2 10 AND MILLER MINE IN SEC. 15 (YUBA COUNTY). 1035 ACRES TOTAL. PATENTED CLAIMS WITH OTHER UNPATENTED CLAIMS. VARIOUS OLD STATISTICS ON DEPOSIT, WORKINGS AND COSTS IN MINER (1890) ; INFO.SRC : 1 PUB LIT
Comment (Production): TOTAL OUTPUT OF GOLD BANK PLACED AT $2,000,000 OF WHICH $500,000 WAS PROFIT. FIGURES FOR GOLD BANK (FIRST TWO) AND GOLDEN QUEEN. PERCENTAGE OF RECOVERY SAID TO BE LOW IN EARLY OPERATIONS, BUT LATER CLAIMED TO BE 92%-95% AU, AND UP TO 83% AG. OUTPUT OF 40 STAMPS IN 1896 WAS 4300 TONS A MONTH. NO OTHER PRODUCTION RECORDS FOUND.
Comment (Deposit): VEIN. ORE FORMS OVERLAPPING LENSES ON BOTH WALLS IN PLACES; UP TO 40 FT. THICK. ORE ON GOLDEN QUEEN CLAIMS FORMED SUBORDINATE RIBBON STRUCTURE, MOST WAS SOLID, WHITE QUARTZ
References
Reference (Deposit): LOGAN, C.A., 1930, MINES AND MINERAL RESOURCES OF BUTTE COUNTY, CALIF: CALIF. JOURNAL OF MINES AND GEOLOGY, V. 26, NO. 4, P. 373-375
Reference (Deposit): WARING, C.A., 1915, MINES AND MINERAL RESOURCES OF BUTTE COUNTY: CALIF. JOUR. MINES AND GEOLOGY, V. 15, P. 216-217
Reference (Deposit): MINER, J.A., 1890, BUTTE COUNTY; CALIF. JOUR. MINES AND GEOLOGY, V. 10, P. 126-127
Reference (Production): LOGAN (1930)
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
