Hillsboro

The Hillsboro is a platinum mine located in Washington county, Oregon at an elevation of 121 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: Hillsboro

Commodity

Primary: Platinum

Location

State: Oregon
County: Washington

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

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Stream 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: STREAM SEDIMENT DEPOSITS

Structure

Not available

Alterations

Not available

Rocks

Name: Gravel
Role: Host
Age Type: Associated Rock Unit
Age Young: Miocene

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

Analytical Data

Not available

Materials

Not available

Comments

Comment (Commodity): PGE PRESENCE NOT VERIFIED

Comment (Location): LOCATION GIVEN IS FOR TULATIN RIVER SOUTH OF HILLSBORO AT CROSSING OF STATE HIGHWAY 219. ODGMI'S MILOC FILE INDICATES LOCATION IN SEC. 31, T. 1 N., R. 2 W.

Comment (Deposit): NO DEPOSIT DESCRIPTION AVAILABLE

Comment (Geology): NO GEOLOGIC INFORMATION IN REFERENCE. ASSOCIATED ROCKS FROM ODGMI'S MILOC FILE

References

Reference (Deposit): LINDGREN, WALDEMAR, 1912, PLATINUM AND ALLIED METALS: U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1911, PT. 1, P. 997

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.