The White Bear Mines is a gold mine located in Pershing county, Nevada.
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
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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.
White Bear Mines MRDS details
Site Name
Primary: White Bear Mines
Secondary: Blackhole-Monroe Mines
Secondary: Mayflower Mines
Secondary: Monroe Mine
Secondary: NBMG Sample Site 2343
Secondary: Golden Bell
Commodity
Primary: Gold
Secondary: Silver
Secondary: Copper
Secondary: Lead
Tertiary: Zinc
Location
State: Nevada
County: Pershing
District: Sierra District
Land Status
Land ownership: BLM Administrative Area
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
Type: Underground
Ownership
Owner Name: Stockholders
Home Office: Altoona, Pa
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1908
Discovery Year: 1908
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Low-sulfide Au-quartz vein
Orebody
Form: TABULAR
Structure
Type: L
Description: Fault And Shear Zones
Alterations
Alteration Type: L
Alteration Text: Silicified Volcanics
Rocks
Name: Diabase
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Diabase
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Analytical Data: SAMPLE 2343 IS OF SELECT VEIN MATTER FROM A DUMP. IT CONTAINS 2 % FE, 0.2 % MG, 0.07 % CA, 0.15 % TI, MN, 500- PPM AG, 1000 PPM AS, 70 PPM B, 2000 PPM BA, 1 PPM BE, 100 PPM- BI,15 PPM CO, 20 PPM CR, 200 PPM CU, 10 PPM NO, 10 PPM NI, +2-0000 PPM PB, 50 PPM V, 7000 PPM ZN, 100 PPM ZR.
Materials
Ore: Pyrite
Ore: Gold
Ore: Sphalerite
Ore: Galena
Ore: Tetrahedrite
Gangue: Quartz
Comments
Comment (Location): UTM IS TO DUMP SAMPLED IN SEC 11 N OF MONROE MINE.; PREVIOUS QUAD DESIGNATION = DUN GLEN (1961) 1:625000
Comment (Production): $112,000 WORTH OF AU & AG PRODUCED, 1908-1910
Comment (Development): NO ACTIVITY AT TIME OF EXAMINATION IN 1984.
Comment (Deposit): AT THE MINE SAMPLED, WHITE SACCHAROIDAL QUARTZ VEIN MATTER OCCURS IN REPORTED SHEAR ZONES IN FELSIC VOLCANIC AND V-OLCANICLASTIC ROCKS. VEIN QUARTZ HAS SPARSE SPOTTY SULFIDES AN-D IS OFTEN SLIGHTLY IRON-STAINED. LOCALLY PYRITE-RICH PIECES O-F VEIN MATTER ARE ALSO NOTED. THE WORKINGS ON THE TOPO MAP OCC-UR ALONG A N45E ZONE ABOUT 1.5 KM LONG WITH THE MONROE MINE AT- THE SOUTH END AND THE BLACK HOLE MINE AT THE NORTH.; MODEL NAME COULD ALSO BE: POLYMETALLIC VEINS.
Comment (Workings): 4 TUNNELS, DRIFTS. NUMEROUS ADITS, MANY WITH CAVED OR PARTLY CAVED PORTALS (1984). AN OLD MILL FOUNDATION (SMALL) WITH SMALL AMOUNT- OF TAILINGS. THERE IS A LARGER MILL FOUNDATION IN THE CANYON -BELOW THE MAIN MINES.
Comment (Geology): SULFIDES OCCUR IN PERSISTENT 2-8 FT. WIDE AND 4000 FT. LONG QUARTZ VEIN. HOST ROCK CUT BY DIABASE DIKES.
Comment (Deposit): MINE IS OPENED BY 4 MAIN TUNNELS FROM WHICH DRIFTS HAVE BEEN DRIVEN ON THE VEIN. TOTAL UNDERGROUND WORKINGS COMPRISE 5,000 FT. THE BLACK HOLE CLAIM IS AT THE NORTH END, THE MONROE CLAIM AT THE SOUTH END. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV
References
Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89
Reference (Deposit): VANDERBURG, 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY; NEVADA; USBM IC 6902
Reference (Deposit): SOUTHERN PACIFIC CO., 1964, MINERALS FOR INDUSTRY-NORTHERN NEVADA & NORTHWESTERN UTAH-SUMMARY OF GEOLOGIC SURVEY 1955-61, V.I. SO.PACIFIC CO., SAN FRANCISCO, P. 88
Reference (Deposit): GARSIDE, L. J., 27 SEP 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.
Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3
Reference (Deposit): NBMG MINING DISTRICT FILE 299, ITEM 4.
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
