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Telegraph Mining Co.

Past Producer in Sierra 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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Workings at the site
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10086545
MRDS ID X025462
Record type Site
Current site name Telegraph Mining Co.
Related records 10286954

Geographic coordinates

Geographic coordinates: -120.86743, 39.61932 (WGS84)
Elevation 1829
Relative position 3 3/4 MI. NNW OF DOWNIEVILLE.

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Downieville(quadrangle 1:24,000 scale)

Portola(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 California Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 020N 010E 04,09 California

Comments on the location information

  • UTM. ACC. LITERATURE GIVES 04 , USGS DOWNIEVILLE QUAD. SHOWS 09 , NW 1/4 ADIT ENTRANCE.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Nearby scientific data

(1) -120.86743, 39.61932
ListMap

Economic information

Comments on the geologic information

  • QTZ. VEIN CAPPED BY LAVA

Economic information about the deposit and operations

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

Comments on the production information

  • WORKED UNTIL 1910 (?) AS PLACER. NO OTHER PRODUCTION RECORD FOUND.

Workings at the site

  • Type of workings Surface/Underground
    Area 137.598HA
    Overall depth 10.67M

Comments on the workings information

  • 1500 FT. ADIT, 2 SHAFTS, 1 65 FT. DEEP NOT ON VEIN, 1 35 FT. DEEP ON VEIN, 50 FT. DRIFT & 30 FT. STOPE ON VEIN.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 66 .

  • Deposit

    MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC. 1918 , P. 126 .

  • Production

    MACBOYLE, 1920

General comments

Subject category Comment text
Deposit VEIN
Deposit TWO MILLS WERE CARRIED AWAY BY SNOWSLIDE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, J.) U.S. Geological Survey

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 06/28/2024
MSHA mine ID0405100
Mine name (MSHA)TELEGRAPH MINE
Current operatorSaddleback, LLC
Current controller (parent)Telegraph LLC; Amy Pennington
Mine typeUnderground (Metal / non-metal)

Inferred by coordinate + name similarity (56 m, 1.00 match). Confirm against MSHA if precision matters — non-USGS-curated cross-references may occasionally point at a neighbouring mine.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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.