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Amity Mine

Past Producer in Crook county in Oregon, United States with commodity Mercury
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10042805
MRDS ID M060843
Record type Site
Current site name Amity Mine
Alternate or previous names Johnson Creek, Homestake Mercury, International Mercury, New Amity, Paulsen and Saylor
Related records 10273907

Geographic coordinates

Geographic coordinates: -120.32193, 44.34956 (WGS84)
Elevation 1524
Relative position 27 MILES ENE OF PRINEVILLE, OREGON

Site location context

Political divisions (FIPS codes)

Crook(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lookout Mountain(quadrangle 1:24,000 scale)

Prineville(quadrangle 1:100,000 scale)

Bend(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Crooked(hydrologic unit)

Deschutes(hydrologic accounting unit)

Middle Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Ochoco National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Crook

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 014S 020E 15 Oregon

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Limonite Ore
Marcasite Ore
Pyrite Ore
Calcite Gangue
Chalcedony Gangue
Clay Gangue
Gilsonite Gangue

Alteration

  • (Local) Wall Rock Bleached Along Both Walls Of Fault. Kaolinization

Analytical data

Result RICHEST ORE CONTAINS MORE THAN 100 LBS. HG/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Clarno Formation;Clarno Formation;Clarno Formation
    Rock description Clarno Formation;Clarno Formation;Clarno Formation

Nearby scientific data

(1) Clastic rocks and andesite flows
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Johnson Creek Fault Zone - Ene - Trending, Steeply Dipping
Type of structure Local
Structure description Northerly-Trending Faults That Intersect Johnson Creek Fault Zone Are Locally Mineralized.

Ore body information

  • General form IRREGULAR, LENS LIKE, FRACTURE FILLINGS
    Strike N 65 DEG E
    Dip 75 DEG SE
    Plunge 90 DEG
    Thickness 2.44M
    Length 6437.2M
    Depth to top 0M
    Depth to bottom 76.2M

Controls for ore emplacement

  • Ore Shoots At Intersections Of Nne And Ene Trending Fault Zones

Comments on the geologic information

  • PERSISTANT SHEAR ZONE CROPS OUT FOR A STRIKE LENGTH OF AT LEAST 4 MILES, CONTAINS WIDELY SEPARATED RICH DEPOSITS OF HG.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1929
Discoverer W.J. Westerling
Year of first production 1930

Mining district

District name Ochoco Mining District

Land status

Ownership category National Forest
Area name Ochoco National Forest

Ownership information

  • Type Operator
    Owner Felix, Jennings P.
    First year 1977
  • Type Owner
    Owner Homestake Mercury Mines, Inc.
    Last year 1963

Comments on the production information

  • PROBABLY MORE PRODUCED. CLOSED IN 1958 DUE TO LEGAL PROCEEDINGS. ASSESSMENT WORK ONLY SINCE 1962

Workings at the site

  • Type of workings Unknown
    Length 548.64M
    Overall depth 76.2M

Comments on the workings information

  • MAIN MINE DEVELOPMENT IS BY TWO ADITS; 250 FT. SHAFT EXTENDS TO SURFACE, MANY OLD SHALLOW CAVED WORKINGS. PROBABLY MORE PRODUCED THAN RECORDED. CLOSED IN 1958 DUE TO LEGAL PRROCEEDINGS.

Reference information

Bibliographic references

  • Deposit

    BROOKS, H.C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. GEOL. AND MIN. IND. BULL. 55, P. 146-148

  • Deposit

    SWINNEY, C.M., WATERS, A.C., MILLER, G.P., 1968, RECONNAISANCE GEOLOGIC MAP OF THE LOOKOUT MOUNTAIN QUADRANGLE, CROOK AND WHEELER COUNTIES OREGON: USGS MISC. GEOL. INV. MAP I-543

  • Deposit

    GILLULY, JAMES, REED, J.C., AND PARK, C.F. JR., 1933, SOME MINING DISTRICTS OF EASTERN OREGON: USGS BULL. 846-A, P. 120

  • Deposit

    MERCURY IN OREGON, 1965 , USBM IC 8252 .

  • Deposit

    1929 GILLULY, J., BULL. 846-

  • Production

    BROOKS, H.C., 1963, P. 146

General comments

Subject category Comment text
Deposit RECORD ( M055961 ) MERGED WITH THIS RECORD AND DELETED FROM OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1974 Puffett, Willard P. U.S. Geological Survey
Updater 01-AUG-1980 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site