The Big Dome Prospect is a copper mine located in Kittitas county, Washington at an elevation of 4,800 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: 4,800 Feet (1,463 Meters)
Commodity: Copper
Lat, Long: 47.48806, -121.02639
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.
Big Dome Prospect MRDS details
Site Name
Primary: Big Dome Prospect
Commodity
Primary: Copper
Tertiary: Tungsten
Tertiary: Zinc
Tertiary: Lead
Tertiary: Uranium
Location
State: Washington
County: Kittitas
District: Huckleberry Mountain Area
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.
Administrative Organization: In Wenatchee National Forest
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Big Dome Mining Co., Inc.
Home Office: Seattle, Wa.
Years: 1949 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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: Northern Cascade Mountains
Mineral Deposit Model
Not available
Orebody
Form: DISSEMINATED
Structure
Not available
Alterations
Not available
Rocks
Name: Peridotite
Role: Associated
Age Type: Host Rock Unit
Age Young: Miocene
Name: Peridotite
Role: Associated
Age Type: Host Rock
Age Young: Miocene
Name: Peridotite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Peridotite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 5 CHIP SAMPLES ASSAYED 3.4-10.3 PPM AG, TO 0.64% CU, 0.02-0.04% W, TRACES AU, PB, ZN
Materials
Ore: Pyrite
Ore: Chalcopyrite
Ore: Scheelite
Comments
Comment (Commodity): TRACES OF RADIOACTIVITY
Comment (Deposit): THE TYPE OF DEPOSIT IS UNKNOWN
Comment (Workings): ADIT, SEVERAL OPEN CUTS
Comment (Geology): INGALLS COMPLEX IS AN ACCRETED OPHIOLITE TERRANE
References
Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 59.
Reference (Deposit): GUALTIERI, J.L., THURBER, H.K., MILLER, M.S., MCMAHAN, A.B., AND FEDERSPIEL, F.F., 1975, MINERAL RESOURCES OF ADDITIONS TO THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 75-3, P. 114.
Washington Gold
"Where to Find Gold in Washington" 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 Arizona. Read more: Where to Find Gold in Washington.
