The Pioneer is a tungsten mine located in Tulare 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.
Pioneer MRDS details
Site Name
Primary: Pioneer
Secondary: Goodhope
Commodity
Primary: Tungsten
Location
State: California
County: Tulare
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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: S
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
Ore: Scheelite
Gangue: Wollastonite
Gangue: Epidote
Gangue: Garnet
Gangue: Diopside
Comments
Comment (Location): SE 1/4, UTM ACC
Comment (Deposit): TACTITE IS OBSERVED ALONG THE CONTACT AND ESPECIALLY ON THE UNDER SIDE OF THE PENDANT.
Comment (Workings): TWO EXPLORATORY ADITS, ONE CROSSCUT ACCESS ADIT, TWO GLORY HOLES, AN OPEN CUT, AND STOPES FROM THE UPPER WORKINGS CONNECTED BY RAISES.
Comment (Geology): GEOL.DESC: LIMESTONE IS MASSIVELY BEDDED, STRIKES N10 TO 35W, DIPS 22 TO 30S AND IS IN CONTACT WITH A MEDIUM GRAINED HORNBLENDE-BIOTITE GRANODIORITE-SLIVERS OF FINE-GRAINED SCHISTOSE HORNBLENDE-QTZ. DIORITE ARE FOUND AT PLACES ALONG SHEARED CONTACT. A SMALL METAMORPHIC BODY COMPLETELY SILICATED LIES JUST NORTH OF LIMESTONE PENDANT. THIS BODY IS ROUGHLY DIVIDED LONGITUDINALLY INTO TWO MINERALOGICAL ASSEMBLAGES WITH A GARNET-EPIDOTE TACTITE ON NE SIDE AND DIOPSIDE-WOLLASTONITE ROCK ON SW SIDE.
References
Reference (Production): GOODWIN, J.G.
Reference (Deposit): GOODWIN, J.G., 1958; MINES AND MINERAL RESOURCES, TULARE COUNTY; CA. JOUR. MINES AND GEOLOGY, VOL. 54, NO. 3, P. 361-362
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.
