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  3. Mineral Resource Data System (MRDS)

Reed Mine

Past Producer in Yolo county in California, 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. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10103813
MRDS ID M055650
MAS/MILS ID 61130019
Record type Site
Current site name Reed Mine
Alternate or previous names Reed, California, Soda Springs, Royal

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Main Entrance -122.37164, 38.8649 (WGS84) 488 10 17 MI SE OF LOWER LAKE. Southern of the two adits labeled on Knoxville 24k topo. GNIS placed the point at the southern one, but the label is next to the northern one.
(click for info)
Main Entrance -122.37278, 38.86594 (WGS84) 10 Northern of the two adits labeled Reed Mine on Knoxville 24k topo.

Site location context

Political divisions (FIPS codes)

Yolo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Knoxville(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Cache(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Yolo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 012N 005W 25 NW4 of NW4 California

Comments on the location information

  • Also in secs. 23 and 26.

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Metacinnabar Ore
Calcite Gangue
Dolomite Gangue
Marcasite Gangue
Pyrite Gangue

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Analytical data

Result ASSAYS TO 5.4 LB/TON, DMEA REPT

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

Main Entrance (1) -122.37164, 38.8649
ListMap
Main Entrance (2) -122.37278, 38.86594
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Serpentine - Sediment Contact

Ore body information

  • Strike NW
    Dip SW
    Length 1609.3M
    Width 30.48M

Controls for ore emplacement

  • Altered Serpentine And Fault Zone

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1870
Year of first production 1871
Production years 1873 - 1880, 1914 - 1917, 1931 - 1932, 1939 - 1948

Comments on exploration

  • 1958 DIREXPL DME

Mining district

District name Knoxville

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Bradley Mining Co.

Production statistics

  • Year 1962
    Period To 1962
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^10-25 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 553g/mt

Comments on the production information

  • USBM DATA.

Workings at the site

  • Type of workings Surface/Underground
    Length 1828.8M
    Overall depth 106.68M

Reference information

Bibliographic references

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252.

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES

  • Deposit

    AVERITT, P., 1945, QUICKSILVER DEPOSITS OF THE KNOXVILLE DISTRICT, NAPA, YOLO, AND LAKE COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 41, P. 65-89, pl. 6.

  • Deposit

    BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    O'BRIEN, J.C., 1950, MINES AND MINERAL RESOURCES OF YOLO COUNTY, CALIF.: CJMG, V. 46, P. 432-434.

  • Deposit

    Ransome A.L., and Kellogg, J.L., 1939, Quicksilver resources of California: California Journal of Mines & Geology, v. 35, no. 4, p. 353-486.

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1983-11-04 Western Field Operations Center (WFOC) U.S. Geological Survey MAS 0061130019 = newMRDS 10214856
Editor 2010-11-10 Wilson, Anna B. U.S. Geological Survey MAS 0061130019 = newMRDS 10214856, merged and deleted.

Beyond USGS

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

External references

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.