Chickamin Mine

The Chickamin Mine is a gold mine located in Coos county, Oregon at an elevation of 89 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: Chickamin Mine
Secondary: Mathews M.J. Property

Commodity

Primary: Gold
Tertiary: Platinum
Tertiary: Chromium

Location

State: Oregon
County: Coos
District: Beach Area

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: W. H. Wann

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Beach Placer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Oregon Coast Range

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Form: TABULAR

Structure

Not available

Alterations

Not available

Rocks

Name: Sand and Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene

Analytical Data

Analytical Data: ASSAYS INDICATE $1.00-1.55/TON AU + PT (1939). ONE SAMPLE CONTAINED 85% HEAVY MINERALS WITH 20% MAGNETITE, 65% CHROMITE, PLUS ILMENITE AND GARNET. TWO SAMPLES ASSAYED 0.02 OZ/TON (690 PPB) AU+PT
Analytical Data: THIS RECALCULATES TO 43 PPB AU+PT
Analytical Data: AND 0.14 OZ/TON (4.8 PPM) AU, 0.09 OZ/TON (3 PPM) PT FROM 1/2 POUND CONCENTRATE FROM 8 LB SAMPLE
Analytical Data: 300 PPB AU, 190 PPB PT

Materials

Ore: Chromite
Ore: Gold
Gangue: Magnetite
Gangue: Quartz
Gangue: Ilmenite
Gangue: Garnet

Comments

Comment (Geology): GEOL.DESC: DEPOSIT IS RATHER COMPACT, PARTLY CEMENTED BY IRON OXIDES AND IS REGARDED AS OFFSHORE SEDIMENTS.

Comment (Location): AT SOUTH END OF SOUTH SLOUGH (MAY ALSO BE CALLED BROWN SLOUGH) NEAR JOHN B CREEK. LOCATION IS PRESUMED ACCURATE WITHIN TERRACE; NO MINE IS SHOWN ON TOPO MAP.

Comment (Production): PRODUCTION NOT RECORDED.

Comment (Deposit): BLACK SAND STREAKS 1-8 IN. THICK AT BOTTOM OF A PEBBLY LAYER, AGGREGATE 3 OR 4 FT. PLACER AREA MAY BE 200 X 500 FT. ANCIENT BEACT TERRACE

Comment (Workings): DEVELOPED BY AN OPEN CUT AND TUNNEL

References

Reference (Deposit): BROOKS, H.C., AND RAMP, LEN, 1968, GOLD AND SILVER IN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 61, P. 180-181.

Reference (Deposit): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1940, OREGON METAL MINES HANDBOOK, SOUTHWESTERN OREGON--COOS, CURRY, AND DOUGLAS COUNTIES: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14 -C, V. 1 , P. 19, 22-24.

Reference (Deposit): PARDEE, J.T., 1934, BEACH PLACERS OF THE OREGON COAST: U.S. GEOLOGICAL SURVEY CIRCULAR 8, P. 39-40.

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.