The Chicago is a gold mine located in Placer county, California at an elevation of 581 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: 581 Feet (177 Meters)
Commodity: Gold
Lat, Long: 38.85194, -121.15667
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.
Chicago MRDS details
Site Name
Primary: Chicago
Secondary: Auburn - Chicago
Secondary: Falls Creek
Commodity
Primary: Gold
Secondary: Copper
Secondary: Silver
Secondary: Zinc
Secondary: Lead
Location
State: California
County: Placer
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1938
Time Period: 1933-1938
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Vein Faulted In Places
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ASSAYS .5 OZ AU/TON - 1.4 OZ AU/TON
Materials
Ore: Gold
Ore: Sphalerite
Ore: Pyrite
Ore: Galena
Gangue: Quartz
Comments
Comment (Location): UTM EST. NE 1/4 35
Comment (Production): AVG. YIELD DURING 1ST YEAR OF MILLING EST. $17 AU/TON. NO OTHER PRODUCTION RECORD FOUND.
Comment (Deposit): VEIN, FEW IN - 3 FT. THICK GENERALLY 1 - 2 FT. THICK IN ORE SHOOTS. WIDEST PARTS REPORTEDLY LOW GRADE, LESS THAN 1 % SULFIDES.
Comment (Workings): 2 SHAFTS, WINZE, DRIFTS, 2 RAISES
Comment (Deposit): SOUTH OF THE ELIZABETH, NORTH OF THE MARY LEN CLAIM. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53 , NOS. 3 AND 4 , P. 588 .
Reference (Deposit): RICE, S. J., 1951 , COUNTIES OF CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 47 , NO. 2 , P. 350 .
Reference (Production): LOGAN ( 1936 ) GOODWIN ( 1957 ) RICE ( 1951 )
Reference (Deposit): LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 16 - 17 , 42 .
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.
