The Lazy Jim is a iron mine located in Baker county, Oregon.
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
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.
Lazy Jim MRDS details
Site Name
Primary: Lazy Jim
Commodity
Primary: Iron
Tertiary: Gold
Tertiary: Silver
Location
State: Oregon
County: Baker
District: Sumpter
Land Status
Administrative Organization: Wallowa-Whitman National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metasomatic
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Blue Mountain Section
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 0.18-0.38 OZ/TON AG
Analytical Data: 0.04-0.12 OZ/TON AU
Analytical Data: 40-48% FE
Materials
Ore: Hematite
Gangue: Calcite
Comments
Comment (Geology): IRON OXIDES PSEUDOMORPH AFTER FIBROUS AMPHIBOLES.
Comment (Production): APPROXIMATELY 100 TONS OF ORE WAS USED AT THE SUMPTER SMELTER FOR FLUX (1904-1905)
Comment (Deposit): THE IRON OXIDES OCCURRED IN THE PERIDOTITE NEAR A CONTACT WITH LIMESTONE WITHIN THE CONTACT AUREOLE OF A SMALL GRANODIORITE INTRUSION. THE LIMESTONE CONTAINS SEVERAL SEAMS OF RECRYSTALLIZED CALCITE (55.8% CAO; 0.22% MG O) ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): WAGNER, N.S., 1943, LAZY JIM (CALCITE CRYSTALS); ODGMI UNPUBLISHED REPORT
Reference (Deposit): PARDEE, J.T. AND HEWITT, D.F., 1914, GEOLOGY AND MINERAL RESOURCES OF THE SUMPTER QUADRANGLE, ORE. BUREAU OF MINES VOL. 1, NO. 6, P. 70
Reference (Production): PARDEE AND HEWITT (1914)
Oregon Gold
"Where to Find Gold in Oregon" 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 Oregon. Read more: Where to Find Gold in Oregon.
