Rainbow

The Rainbow is a zinc, gold, silver, arsenic, and lead mine located in Baker county, Oregon at an elevation of 5,000 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

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.

Site Name

Primary: Rainbow

Commodity

Primary: Zinc
Primary: Gold
Primary: Silver
Primary: Arsenic
Primary: Lead

Location

State: Oregon
County: Baker
District: Mormon Basin

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Condor Gold Mines

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1901
Discovery Year: 1901
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Physiographic Detail: Pedro Mountain

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Form: LENS

Structure

Type: R
Description: Ne Alinement Of Granite Intrusives

Type: L
Description: Ne And Nw Trending Faults

Alterations

Alteration Type: L
Alteration Text: Actinolite, Chlorite

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Tetrahedrite
Ore: Gold
Ore: Sphalerite
Ore: Pyrite
Ore: Galena
Gangue: Ankerite
Gangue: Quartz

Comments

Comment (Workings): ORE SHOOTS ARE UP TO 350 FT LONG, OCCUPY VEINS AT FOOTWALL AND HANGING WALL CONTACTS OF A FAULT BRECCIA 50 FT WIDE. 0.48 TOZ AU/T AVERAGE GRADE ESTIMATED FROM RECORDED PRODUCTION OF $2,323,092.46, 1901-1919 AND 1,222 TOZ. IN 1934

Comment (Geology): DIKE IS HIGHLY ALTERED, INTRUDES BRECCIA. LIMESTONE AND GREENSTONE FORM FOOTWALL, ARGILLITE AND GRANITIC ROCKS FORM HANGING WALL.

Comment (Production): ITEM 8 ESTIMATED FROM RECORDED PRODUCTION OF $2,323,092.46, 1901-1919 AND 1,222 TOZ. IN 1934

References

Reference (Deposit): GILLULLY, J., ETAL, 1933, SOME MINING DISTRICTS OF EASTERN OREGON: USGS BULL. 846-A, P. 1-40.

Reference (Deposit): OREGON DEPARTMENT OF GEOLOGY ABD MINERAL INDUSTRIES, 1939, OREGON METAL MINES HANDBOOK; NORTHEASTERN OREGON, EAST HALF: BULLETIN 14-A, 125 P.

Reference (Deposit): BROOKS, H.C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON: O.D.G.M.I. BULL. 61

Reference (Deposit): & 5) WOLFF, E. N., 1965 , THE GEOLOGY OF THE NORTHERN HALF OF THE CAVINESS QUADRANGLE, UNIV. OREGON PHD OR

Reference (Deposit): SWARTLY, A.M., 1914, ORE DEPOSITS OF NORTHEASTERN OREGON BUREAU OF MINES AND GEOLOGY, MINERAL RESOURCES OF OREGON 1(8): 306 P.

Reference (Deposit): 1914 RECON ORE. BU. MINES AND GEOL.: REF. 1

Reference (Deposit): 1929 RECON J. GILLULLY ETAL: BULL. 846-A

Reference (Deposit): 1939 RECON ORE. DEPT. GEOL. MIN. IND.: REF. 3

Reference (Deposit): 1968 COMPILE ORE. DEPT. GEOL. MIN. IND.: REF. 4

Reference (Production): BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, P. 129

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.