Sanger Mine

The Sanger Mine is a gold 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

Name: Sanger Mine  

State:  Oregon

County:  Baker

Gallery: View 6 Sanger Mine Photos

Elevation: 5,000 Feet (1,524 Meters)

Primary Mineral: Gold

Lat, Long: 44.99389, -117.40750

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.


Satelite image of the Sanger Mine

Mine Description

This old mine is located on a branch of Goose Creek near the top of the Powder River Eagle Creek divide. The following description of the deposit is taken from Lindgren (1901, p. 738-739) and a Department mine-file report compiled in the early 1900's by Charles P. Berkey.

The principal vein, called the Summit lode, was discovered in 1870, and was actively worked during the following years. In 1874 the production was $60,000 from ore containing $16 to the ton. The total production to 1887 is unknown, though probably small, but a mill was then built, and in 1889 production began to increase rapidly. The Mint reports for the 4 years 1889-1892 give $813,000 as the production of the mine. Production ceased in 1897. Total output is estimated at about $1,500,000.

The rocks at the Sanger mine are dark-colored, medium-to-fine-grained mudstones and shales of the Upper Triassic Hurwal Formation. The rocks are pyritic near the veins. The Summit vein strikes nearly due east, dips 30° N. and has been worked to a depth of 400 feet on the dip from several adits and an inclined shaft. An old map dated January 1, 1901 seems to indicate that drifting was done on at least two other veins or fault zones, one paralleling the summit vein and the other crossing it at nearly right angles. The ore shoot in the upper stopes of the Summit vein was 600 feet long, about 15 inches wide and averaged $20 to $25 a ton in gold; below the zone of oxidation the vein widened to 2 to 4 feet and the value dropped to $12 a ton. The gangue is coarse quartz with a little calcite and about 3 percent sulfides, consisting mostly of pyrite with a little sphalerite and galena. Much of the gold was free. In its easterly extension on all levels the vein bends in a broad curve to the south and appears to blend with the strike of the host rocks, losing its characteristic size and value. Toward the west the vein has been offset by faulting, at which point mining ceased. Other veins on the property include the Packwood, Golden Eagle, and Knight. The Big Vein at the head of Fir Gulch may have been the source of the rich placers on Fir Gulch.

Source: Gold and Silver in Oregon, State of Oregon Department of Geology and Mineral Industries, 1968

Sanger Mine MRDS details

Site Name

Primary: Sanger Mine


Commodity

Primary: Gold
Tertiary: Lead
Tertiary: Zinc
Tertiary: Copper


Location

State: Oregon
County: Baker
District: Eagle Creek


Land Status

Administrative Organization: Wallowa-Whitman National Forest


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1870
Discovery Year: 1870
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Physiographic Detail: Wallowa Mountains


Mineral Deposit Model

Not available


Orebody

Form: TABULAR


Structure

Type: R
Description: Ne Trending Blue Mountains Uplift


Alterations

Alteration Type: L
Alteration Text: Pyritization Of Wall Rocks, Argillic Selvage


Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic


Analytical Data

Not available


Materials

Ore: Chalcopyrite
Ore: Gold
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz


Comments

Not available


References

Reference (Deposit): 1962 GEOLMAP ORE. DEPT. GEOL. MIN. IND.: MAP

Reference (Production): BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, P. 91

Reference (Deposit): LINDGREN, W., 1901, THE GOLD BELT OF THE BLUE MOUNTAINS: USGS 22ND ANNUAL REPORT, P. 738-739

Reference (Deposit): PROSTKA, H. J., 1962, GEOLOGY OF THE SPARTA QUADRANGE, OREGON: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES; MAP WITH TEXT, SCALE 1:62500

Reference (Deposit): BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON: OREGON DEPT. GEOL. AND MIN. IND. BULL. 61:91-92.

Reference (Deposit): 1901 RECON W. LINDGREN: REF. 1


Oregon Gold

Where to Find Gold in Oregon

"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 at Where to Find Gold in Oregon.