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Amy Balch Mine

Past Producer in Trinity county in California, United States with commodities Gold, Iron
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10035908
MRDS ID M023861
Record type Site
Current site name Amy Balch Mine
Related records 10190580

Geographic coordinates

Geographic coordinates: -122.72582, 40.72791 (WGS84)
Elevation 1097
Relative position 0.7 MI. NE DEADWOOD SITE

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

French Gulch(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Trinity(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 008W 11 California

Comments on the location information

  • UTM EST. UNSURVEYED FOR TOWNSHIP, RANGE AND SECTION LOC PROJECTED

Commodities

Commodity Importance
Gold Primary
Iron Secondary

Materials information

Materials Type of material
Gold Ore
Ocher Ore
Quartz Gangue

Analytical data

Result ASSAYS OF EAST DRIFT IN 2.5 FT.-THICK VEIN ON ZENT CLAIM, $4-$15/TON IN GOLD AVG. $7. ASSAYS OF MORE THAN $20 PER TON WERE DISREGARDED.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Bragdon Slate
    Rock description Bragdon Slate

Nearby scientific data

(1) -122.72582, 40.72791
ListMap

Economic information

Ore body information

  • Strike N40W
    Dip 40NE
    Thickness 4.57M

Comments on the geologic information

  • DIORITE-PORPHYRY INTRUDES SLATE. FINE-GRAINED, ANDESITIC-APPEARING ROCK WAS EXPOSED IN CROSSCUT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Deadwood

Land status

Ownership category National Forest

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND.

Comments on the workings information

  • NUMEROUS UNDERGROUND WORKINGS; ON ZENT CLAIM, A CROSSCUT DRIVEN SOUTH FOR 124 FT. TO TAP VEIN CONSISTING OF GOUGE AND CRUSHED QUARTZ. EAST DRIFT DRIVEN 95 FT., EXPOSING 2.5 FT. OF VEIN THICKNESS. RAISE DRIVEN INTO 15 FT. THICKNESS WEST DRIFT OF 95 FT., FIRST 25 FT. IN ORE, 25 FT. CROSSCUT DRIVEN NORTH FROM IT.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C.V., 1941, MINERAL RESOURCES OF TRINITY COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37, NO. 1, P. 25-26

  • Deposit

    AVERILL, C.V., 1933, GOLD DEPOSITS OF THE REDDING AND WEAVERVILLE QUADRANGLES: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 29, P. 6-7

  • Deposit

    BROWN, G. CHESTER, 1913, THE COUNTIES OF SHASTA, SISKIYOU AND TRINITY: CALIF. JOUR. MINES AND GEOLOGY, V. 14, PT. 4, P. 884

  • Production

    AVERILL (1941)

General comments

Subject category Comment text
Deposit VEINS; FEW INCHES TO 8 FT. THICK AVG. 2 FT. THICK.
Deposit 4 UNPATENTED CLAIMS. 60 ACRES ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Nelson, Scott C. (Albers, John, P.) U.S. Geological Survey

Beyond USGS

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

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.