The Jumbo Prospect is a mine located in Alameda county, California at an elevation of 2,402 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: 2,402 Feet (732 Meters)
Commodity:
Lat, Long: 37.59278, -121.60611
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.
Jumbo Prospect MRDS details
Site Name
Primary: Jumbo Prospect
Commodity
Tertiary: Manganese
Location
State: California
County: Alameda
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Leslie Holm
Years: 1950 -
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: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Ore Bodies In A Lens Of Massive Folded Into An Anticline Which Pitches To The South And The Main Body Of The Lens Lies On The Sw Limb Of The Fold Dipping 25 Degrees To The West.
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Location): LOCATED IN NE 1/4 NE 1/4 SECTION 14
Comment (Production): NO PRODUCTION
Comment (Workings): SMALL OPEN CUTS , 10-FT. DRIFT ON MAIN BODY, TUNNEL ON SECOND, AND SMALL TRENCH ON LAST BODY MENTIONED
Comment (Geology): GEOL.DESC: MAIN ORE BODY CONSISTS LARGELY OF MASSIVE GREY CHERT WITH POCKETS AND BANDS OF MANGANESE OXIDE; ANOTHER BODY OF GREEN MASSIVE CHERT 3 FT. THICK, STAINED WITH MANGANESE LIES WITHIN BEDDED CHERT AND SHALE; ANOTHER BODY OF VERY SILICEOUS ORE.
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 46, NO. 2, APRIL 1950, P. 344, PL. 58
Reference (Deposit): DOM BULL. 125, P.100
Reference (Deposit): BULL. 152, P.21-22
Reference (Deposit): BULL. 140 PL. 1 (GEOLOGY) P. 66
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.
