Chicago

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

Name: Chicago  

State:  California

County:  Placer

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.


Satelite image of the Chicago

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

"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.