The Swadley Placers is a gold mine located in Jefferson county, Colorado at an elevation of 5,279 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: 5,279 Feet (1,609 Meters)
Commodity: Gold
Lat, Long: 39.80083, -105.06472
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.
Swadley Placers MRDS details
Site Name
Primary: Swadley Placers
Commodity
Primary: Gold
Location
State: Colorado
County: Jefferson
District: Denver Area
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Swadley, George
Years: 1859 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
Operation Type: Unknown
Year First Production: 1858
Year Last Production: 1859
Discovery Year: 1858
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
Not available
Orebody
Not available
Structure
Type: R
Description: Denver Basin, Front Range Uplift
Type: L
Description: Denver Basin
Alterations
Not available
Rocks
Name: Sand and Gravel
Role: Host
Age Type: Host Rock
Age Young: Pleistocene
Analytical Data
Analytical Data: PARKER REFERS TO RALPH MINGES' ORIGINAL ESTIMATE OF 25 TO 40 CENTS/YD VALUE OF GRAVEL (AT $35/OZ AU). ONE RICH PAN OF CLAY AND GRAVEL YIELDED 86 FAIR SMALL COLORS AND NUMEROUS COLORS TOO SMALL TO COUNT.
Materials
Ore: Gold
Comments
Comment (Location): ALONG SOUTH BANKS OF RALSTON CREEK. ELEV AND LAT-LONG GIVEN IS FOR C N2 SE SW SEC. 12. SECTION 10 SITE LIES AT 5360 FT ELEV, 39-48-05N/105-05-55W
Comment (Deposit): 10 FT OF LOUVIERS GRAVEL OVERLIES DENVER FM. CLAYSTONE. GOLD WAS CONCENTRATED IN LOWER 1FT OF GRAVEL AND IN TOP FEW INCHES OF CLAYSTONE
Comment (Workings): CUT IN SEC. 10 WAS 150 FT LONG, 100 FT WIDE, 18 FT DEEP AT SOUTH END
References
Reference (Deposit): PARKER, B.H., JR., 1974, GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 3, P. 63-126
Reference (Deposit): LINDVALL, R.M., 1979, GEOLOGIC MAP OF THE ARVADA QUADRANGLE, ADAMS, DENVER, AND JEFFERSON COUNTIES, COLORADO: USGS MAP GQ-1453
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
