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Union

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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10106541
MRDS ID X025767
Record type Site
Current site name Union
Alternate or previous names Central Or Evening Star
Related records 10262843

Geographic coordinates

Geographic coordinates: -123.11918, 41.25345 (WGS84)
Elevation 1280
Relative position 1 MI. S. ROLLIN SITE

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tanners Peak(quadrangle 1:24,000 scale)

Hoopa(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salmon(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath 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 Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 039N 011W 09 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -123.11918, 41.25345
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults

Ore body information

  • General form KIDNEY
    Strike N40E
    Dip 18-24E
    Thickness 1.83M

Comments on the geologic information

  • KLAMATH, MT. LAUREL & UNION MINES ALL ON SEGMENTS OF SOME FISSURE OR CLOSELY PARALLEL FISSURES. THEORIZED GRAVITY SLIDE 1 OF MT. MASS IN NW DIRECTION TO ACCOUNT OF HEAVY GOUGE ZONES IN VEIN(S) AND VARIABLE DIPS.

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

  • REPORTED PRODUCTION OF $79000 SOME YEARS PRIOR TO 1925. ORE FREE MILLING NO SPECIFIC PRODUCTION RECORD FOUND

Workings at the site

  • Type of workings Underground
    Length 182.88M
    Overall depth 106.68M

Comments on the workings information

  • CROSSCUTS, ADITS, 250 FT. DRIFT W/BACKS OF 80 FT. ON VEIN; STOPED OUT NEARLY TO SURFACE. UNDERHAND STOPED FOR 70 FT. ALONG STRIKE, AND 40 FT. ON DIP. NORTH DRIFT, 70 FT. LONG. SOUTH DRIFT, 1100 FT. LONG INTO UNION EXT. CLAIM. WINZES. 300 FT. SHAFT MILLSITE.

Comments on development

  • ECON.COM: ORE REMAINING PRIOR TO 1925 WAS LOW-GRADE

Reference information

Bibliographic references

  • Deposit

    AVERILL, C.V., 1935, REDDING FIELD DIVISION; CALIF. JOUR. MINES & GEOLOGY, V. 31, P. 301-302

  • Deposit

    IRELAND, W., JR., 1888, REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 8, P. 620

  • Deposit

    LOGAN, C.A., 1925, SACRAMENTO FIELD DIVISION: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 21, NO. 4, P. 458-459

  • Deposit

    COOPER, A.S., 1900, REGISTER OF MINES AND MINERALS, COUNTY OF SISKIYOU CALIF: CALIF. STATE MINING BUREAU

  • Production

    LOGAN (1925)

General comments

Subject category Comment text
Deposit 40 ACRES. 2 LOCATIONS BETWEEN KLAMATH AND MOUNTAIN LAUREL MINES. CONSOLIDATED INTO THE NORCAL MINING CO. SOMETIME BETWEEN 1925-1931. ; INFO.SRC : 1 PUB LIT
Deposit VEIN, 2-6 FT. THICK, HANGING WALL BLACK SLATY SCHIST, CONTAINING CONSIDERABLE GRAPHITE, CRUSHED & BROKEN. FOOTWALL IS DECOMPOSED, LIGHT-COLORED DIKE ROCK.ON SOUTH SIDE ABOVE DRIFT, HANGING WALL, 2-3 FT. THICK, SEP. FROM FOOTWALL BY GOUGE, IN SOME INSTANCES BRECCIATED SLATE. IN NORTH DRIFT, VEIN BROKEN & NARROW AT FARE, DIP STEEPENS WHERE FOLLOWED DOWN BY WINZE. GENERAL OBSERVATIONS INDICATE THAT MOST VEINS IN AREA MAY BE SECTIONS THAT HAVE BEEN 'BENT OVER' NEARLY FLAT, AND IN CASES, BROKEN AWAY, FROM REMAINING DEEPER SECTIONS OF VEINS, ORIGINALLY MUCH STEEPER IN DIP.

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.