The Union Springfield is a gold mine located in El Dorado county, California.
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
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.
Union Springfield MRDS details
Site Name
Primary: Union Springfield
Commodity
Primary: Gold
Location
State: California
County: El Dorado
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: El Dorado Mining Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Production): RICH SURFACE OUTCROPS WORKED IN EARLY 1850'S AND SOON AFTER A SHAFT WAS SUNK. WORKED WITH CHURCH MINE PRIOR TO 1868 AND COMBINED PRODUCTION EXCEEDED $600,000. UNION WORKED 1871-1886; 1896-1909; 1914-15. REOPENED IN 1934 AND WORKED 1936-37; OPERATIONS SPORADIC AND INCONSEQUENTIAL 1937-1940. IDLE SINCE. THIS MINE CONSIDERED TO HAVE BEEN LARGEST SOURCE OF LODE GOLD IN THIS COUNTY. HOWEVER, AS FEW PRODUCTION FIGURES HAVE BEEN MADE AVAILABLE, TOTAL OUTPUT IS UNKNOWN BUT ESTIMATED VALUE RANGES FROM $2,700,000 TO $5,000,000. AREA COMPRISES 41.32 ACRES.
Comment (Workings): A 2000-FT. VERTICAL MAIN SHAFT; ABOUT 750 FT. NORTH ANOTHER 900-FT. SHAFT AND 200 FT. BEYOND ANOTHER 500-FT. SHAFT. SEVERAL CROSSCUT ADITS.
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, PP. 427-28, 536, PL. 10; V. 34, NO. 3, PL. II
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.
