The Dayrock Mine is a lead, silver, and zinc mine located in Shoshone county, Idaho at an elevation of 3,130 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: 3,130 Feet (954 Meters)
Commodity: Lead, Silver, Zinc
Lat, Long: 47.5117, -115.90220
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.
Dayrock Mine MRDS details
Site Name
Primary: Dayrock Mine
Secondary: Stratten Mine
Secondary: Mc Phillips Group
Secondary: Option Mine
Secondary: Panhandle Mine
Commodity
Primary: Lead
Primary: Silver
Primary: Zinc
Secondary: Copper
Tertiary: Gold
Location
State: Idaho
County: Shoshone
District: Placer Center
Land Status
Land ownership: Private
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: Hecla Mining Co.
Percent: 100.0
Home Office: Coeur d'Alene, Idaho
Years: 1981 -
Owner Name: Day Mines, Inc.
Percent: 100.0
Home Office: Wallace, Idaho
Years: 1947 - 1981
Owner Name: Dayrock Mining Co.
Percent: 100.0
Home Office: Wallace, Idaho
Years: 1928 - 1947
Owner Name: Strattons Mines Inc.
Percent: 100.0
Home Office: Wallace, Idaho
Years: 1923 - 1928
Production
Year: 2005
Time Period: 1924-1974
Mined: 1197510.000 mt
Material type: Ore Treated
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: HYDROTHERMAL VEIN AND REPLACEMENT
Plant Type: Beneficiation (Mill)
Plant Subtype: Flotation
Operation Type: Underground
Mining Method: Filled Stopes - Horiz Cut and Fill W/Tailings
Milling Method: Flotation
Year First Production: 1924
Year Last Production: 1974
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: L
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Coeur D'Alene Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Name: Dorn Vein
Form: PINCH AND SWELL
Name: Ohio Vein
Form: PINCH AND SWELL
Name: Dayrock Vein
Form: PINCH AND SWELL
Structure
Type: L
Description: Most orebodies found between the Dobson Pass and Murray Faults
Alterations
Not available
Rocks
Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: 2 ORE SHOOTS TOTALING 350 FT LONG AVERAGE 6 OZ/TON AG AND 6.8% PB ACROSS 8 FT WIDTH.
Materials
Ore: Galena
Ore: Sphalerite
Ore: Tetrahedrite
Ore: Chalcopyrite
Gangue: Sericite
Gangue: Siderite
Gangue: Quartz
Gangue: Pyrite
Gangue: Calcite
Gangue: Ankerite
Comments
Comment (Location): BORDERED BY SILVER STAR INC. ON THE S AND W
Comment (Development): 44 PATENTED CLAIMS, 22 UNPATENTED CLAIMS, 3 PATENTED MILLSITES
Comment (Production): Production data compiled from Day Mines, Inc. annual reports and other sources.
Comment (Development): The Dayrock vein orebody, the first economic orebody found in mine, was apparently discovered in 1924.
Comment (Deposit): DAYROCK VEIN STRIKES W TO N 70 DEG W, DIPS 65 DEG S TO VERTICAL; OHIO VEIN STRIKES N 55 DEG W, IS 2000 FT LONG; DORA VEIN STRIKES N 65 DEG W, IS 650 FT LONG; LATTER TWO DIP S. DEPTHS GIVEN ABOVE EXPRESSED IN ELEVATION
Comment (Workings): LENGTH IS A 1961 FIGURE
References
Reference (Deposit): CAMPBELL, A. B., COLSON, J. B., AND OTHERS, 1961 , GUIDEBOOK TO THE GEOLOGY OF THE COEUR D'ALENE MINING DISTRICT: IDAHO BUREAU OF MINES BULL. 16
Reference (Deposit): FRYKLUND, V. C., JR., 1964 , ORE DEPOSITS OF THE COEUR D'ALENE DISTRICT, SHOSHONE COUNTY, IDAHO: USGS PROF. PAPER 445 , 103 P.
Reference (Deposit): GRIGGS, A. B., 1952 , GEOLOGY AND NOTES ON ORE DEPOSITS IN CANYON-NINE MILE CREEKS AREA, SHOSHONE COUNTY, IDAHO: USGS OPEN - FILE REPT., 108 P.
Reference (Geology): Hobbs, S. W., And Others, 1965 , Geology Of The Coeur D'Alene District, Shoshone County, Idaho: USGS Prof. Paper 478 , 139 P.
Idaho Gold
"Where to Find Gold in Idaho" 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 Idaho. Read more: Where to Find Gold in Idaho.
