The Dawson Mountain-Surprise Group is a copper mine located in Fremont county, Colorado at an elevation of 7,001 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: 7,001 Feet (2,134 Meters)
Commodity: Copper
Lat, Long: 38.38889, -105.29556
Map: View on Google Maps
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Dawson Mountain-Surprise Group MRDS details
Site Name
Primary: Dawson Mountain-Surprise Group
Secondary: Copper Boy 1902
Secondary: Unpatented Claims: Sam 1-15 1977 Part
Commodity
Primary: Copper
Secondary: Silver
Secondary: Gold
Location
State: Colorado
County: Fremont
District: Grape Creek Area
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: Unknown
Ownership
Owner Name: Pacific Coast Mines (Sam Claims-
Production
Year: 1902
Mined: 442.890 mt
Description: Ap_Grade: ^2.90% Cu, 0.77 Oz/Ton Ag, 0.05 Oz/Ton Au
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Year First Production: 1902
Year Last Production: 1902
Discovery Year: 1902
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Colorado Piedmont
Mineral Deposit Model
Model Name: Stratabound Precambrian sulfide, Colorado and Wyoming
Orebody
Not available
Structure
Type: R
Description: Northern Wet Mountains, Canon City Embayment, Thirtynine Mile Volcanic Field
Type: L
Description: Shear Zone (Gossan); Main Fault Strikes N 75 E, Dips 60-85 Se; Webster Park Graben; Ilse Fault
Alterations
Not available
Rocks
Name: Granodiorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Granodiorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Granodiorite
Role: Associated
Age Type: Associated Rock
Age Young: Paleoproterozoic
Name: Granodiorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleoproterozoic
Analytical Data
Analytical Data: CU (0.37-0.76%), AG (0.4-0.6 OZ/TON), AU (0.02-0.03 OZ/TON), ZN (0.03-0.14%)
Materials
Ore: Malachite
Ore: Silver
Ore: Gold
Gangue: Magnetite
Gangue: Biotite
Gangue: Quartz
Comments
Comment (Production): PRODUCTION FROM COPPER BOY CLAIMS
Comment (Workings): 3 PITS, 3 INACCESSIBLE ADITS; PIT 1 IS 8 X 10 X 7 FT DEEP, PIT 2 IS GLORY HOLE 29 FT DIAMETER, 12 FT DEEP; PIT 3 IS SMALL PROSPECT; MASSIVE DUMP SURROUNDS PIT 2. ADIT 1 DRIFTS N 78 W; ADIT 2 DRIFTS N 75 E; ADIT 3 DRIFTS N 40 E FOR 45 FT, WITH 100-FT WINZE
Comment (Location): APPROXIMATELY 5 MILES SW OF CANON CITY ON TEMPLE CANYON ROAD, THEN 1 MILE SW ON JEEP ROAD TO OLD COPPER BOY PROSPECTS ; INFO FROM LAND.ST :(1976)
Comment (Other Database): RECORD NUMBER 25 IS A POTENTIAL DUPLICATE OF THIS RECORD
Comment (Deposit): DEPOSIT ON SHEAR ZONE 520 FT LONG, ALONG STRIKE; HIGHLY OXIDIZED
References
Reference (Deposit): Heinrich, E.W., 1981, Precambrian tungsten and copper-zinc skarn deposits of south-central Colorado: Colorado Geological survey Resource Series 21, 115 p.
Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.
Reference (Deposit): TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A., AND EPIS, R. C., 1975. RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1: 62,500.
Reference (Deposit): Sheridan, D.M., Raymond, W.H., Taylor, R.B., and Hasler, J.W., 1990, Metallogenic map of stratabound exhalative and related occurrences in Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-1971, scale 1:1,000,000
Reference (Production): COKER, 1982
Reference (Deposit): COKER, R. J., 1982, MINERAL RESOURCES OF THE ARKANSAS CANYON PLANNING UNIT WITH SPECIAL EMPHASIS ON THE FORMER GRAPE CREEK WILDERNESS STUDY AREAS AND THE MCINTYRE HILLS WILDERNESS STUDY AREA: US BLM MINERAL REPORT, P. 56-58
Colorado Mining Photos
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