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Piolet Knob

Past Producer in Siskiyou county in California, United States with commodity Gold
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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. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10106538
MRDS ID X025729
Record type Site
Current site name Piolet Knob
Related records 10116441

Geographic coordinates

Geographic coordinates: -122.61418, 41.90123 (WGS84)
Elevation 1219
Relative position 2 MI. W. HORNBROOK

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hornbrook(quadrangle 1:24,000 scale)

Yreka(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Klamath(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 047N 007W 23,24,26 California

Comments on the location information

  • UTM ACC. SE 1/4 23, SW 1/4 24, NE 1/4 26

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -122.61418, 41.90123
ListMap

Economic information

Economic information about the deposit and operations

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

Land status

Ownership category National Forest

Comments on the production information

  • ORE IS FREE-MILLING & RUNS ABOUT $20/TON. LAST ORE MILLED GAVE $18/TON FROM 16 TONS. NO OTHER PRODUCTION RECORD FOUND

Comments on the workings information

  • CONSIDERABLE PROSPECTING DONE IN 1920 200 FT. SHAFT, 500 FT. ADIT, OTHER SHORT ADITS

Comments on development

  • ECON.COM: VARIOUS MILL TESTS OVER WIDTH OF 400 FT. REPORTED TO SHOW $4/TON IN GOLD, BUT ROCK IS PROBABLY LOWER GRADE.

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2, P. 155

  • Deposit

    BROWN, G.C., 1914, THE COUNTIES OF SHASTA, SISKIYOU AND TRINITY, CALIF.: CALIF. JOUR. MINES & GEOLOGY, V. 14, PT. 4, P. 839

  • Deposit

    LOGAN, C.A., 1925, SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 21, NO. 4, P. 455-456

  • Production

    SOUTHERN PACIFIC COMPANY (1964) BROWN (1914)

General comments

Subject category Comment text
Deposit LARGE, LOW-GRADE DEPOSITS OF QTZ. STRINGERS. 3 PRINCIPAL VEINS.
Deposit 310 ACRES. 15 LOCATIONS. LOCATED IN 1882. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-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.