The Gemmill Prospect is a silver, copper, and gold mine located in Latah county, Idaho at an elevation of 2,598 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: 2,598 Feet (792 Meters)
Commodity: Silver, Copper, Gold
Lat, Long: 46.7189, -116.69780
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.
Gemmill Prospect MRDS details
Site Name
Primary: Gemmill Prospect
Secondary: Olson
Commodity
Primary: Silver
Primary: Copper
Primary: Gold
Location
State: Idaho
County: Latah
District: Troy District
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: Surface/Underground
Ownership
Owner Name: B. Nelson, Troy Sillimanite Co., Al And Bob Olson
Owner Name: L. Osvog
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Walla Walla Plateau
Physiographic Detail: Clearwater Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericitization, Kaolinization
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: ASSAYS OF 8 REPRESENTATIVE SAMPLES VARIED FROM 1.07 TO 3.48% CU, 0.2 TO 1.4 OZ. AG, AND 0.02 TO 0.04 OZ AU.
Materials
Ore: Covellite
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Bornite
Gangue: Pyrite
Gangue: Garnet
Gangue: Diopside
Gangue: Epidote
Gangue: Quartz
Gangue: Pyrrhotite
Comments
Comment (Location): LIES ALONG LITTLE BEAR CR DOWNSTREAM FROM O.K. OLSON MINE. ABOUT 3.5 MI NE OF AMERICAN RIDGE
Comment (Development): CORE DRILLING BY OLSONS
Comment (Workings): SHAFTS AND CUTS FOR .5 MI OR SO ALONG CREEK
References
Reference (Deposit): Varley, Thomas, Wright, C.A., Soper, E.K., and Livingston, D.C., 1919, A preliminary report on the mining districts of Idaho: U.S. BUReau of MINES BULLetin 166, p. [available online at http://digital.library.unt.edu/ark:/67531/metadc12364/m1/1/]
Pages: p. 35.
URL: http://digital.library.unt.edu/ark:/67531/metadc12364/m1/1/
Reference (Deposit): HUBBARD, C. R., 1956, IDAHO BUREAU OF MINES AND GEOLOGY OPEN-FILE REPT., 1 P.
Reference (Deposit): HUBBARD, C. R., 1957, MINERAL RESOURCES OF LATAH COUNTY: IDAHO BUREAU OF MINES AND GEOLOGY COUNTY REPT. 2, 29 P.
Reference (Deposit): EASTMAN, E. A., 1925, A GEOLOGICAL STUDY OF THE COPPER OUTCROPS NEAR TROY, IDAHO: MOSCOW, IDAHO, UNIV. OF IDAHO, B. S. THESIS, 15 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.
