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
Elevation: 121 Feet (37 Meters)
Commodity: Platinum
Lat, Long: 45.50028, -122.99000
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.
Hillsboro MRDS details
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.
