Morris Mine

The Morris Mine is a silver, gold, arsenic, zinc, lead, copper, and antimony mine located in Grant county, Oregon.

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: Morris Mine  

State:  Oregon

County:  Grant

Elevation:

Commodity: Silver, Gold, Arsenic, Zinc, Lead, Copper, Antimony

Lat, Long: 44.72556, -118.57083

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 Morris Mine

Morris Mine MRDS details

Site Name

Primary: Morris Mine


Commodity

Primary: Silver
Primary: Gold
Primary: Arsenic
Primary: Zinc
Primary: Lead
Primary: Copper
Primary: Antimony


Location

State: Oregon
County: Grant
District: Greenhorn


Land Status

Administrative Organization: Umatilla National Forest


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Blue Mountain Section


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

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


Analytical Data

Analytical Data: ASSAYS OF SULPHIDE RICH SAMPLES AVERAGE 0.14 OZ/TON AU AND 1.15 OZ/TON AG. A SAMPLE OF THE TETRAHEDRITE RICH ORE RAN 0.10 OZ/TON AU AND 39.18 OZ/TON AG (ALLEN, 1948)


Materials

Ore: Sphalerite
Ore: Tetrahedrite
Ore: Galena
Ore: Pyrite
Gangue: Quartz
Gangue: Calcite
Gangue: Roscoelite


Comments

Comment (Workings): DEVELOPED BY 2 GROUPS OF WORKINGS 800 FEET APART AND TOTALLING 1000 FEET OF CROSSCUTS AND DRIFTS AMONG FOUR ADITS. 1891 OUTPUT WAS $15,000 IN SILVER AND $3400 IN GOLD.

Comment (Geology): YOUNGER (TERT?) GRANODIORITE PORPHYRY DIKES CUT BOTH THE QUARTZ DIORITE AND INTRUDED ARGILLITE. MINERALIZATION OCCURS IN NARROW GASH FRACTURES ALONG THE FOOTWALL OF ONE OF THE PORPHYRY DIKES. ; GEOL.DESC: COUNTRY ROCKS ARE CUT BY QUARTZ - DIORITE DIKES. TWO PERIODS OF QUARTZ DEPOSITION, THE FIRST ACCOMPANYING THE MINERALIZATION. LARGE AMT. OF CALCITE AND GREEN COPPER STAIN. LIMESTONE BAND CUTS ARGILLITE A LITTLE NORTH OF PROPERTY.

Comment (Location): SW 1/4

Comment (Production): LITTLE DATA AVAILABLE; 1891 OUTPUT WAS $15,000 IN SILVER AND $3400 IN GOLD.


References

Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941, ODGMI BULL. 14-B, P.84

Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, ODGMI BULL. 61, P.115

Reference (Deposit): ALLEN, R.M., 1948, GEOLOGY AND MINERALIZATION OF THE MORNING MINE AND ADJACENT REGION, GRANT COUNTY, OREGON, ODGMI BULL. 39, P.37


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: Where to Find Gold in Oregon.