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Ortega

Past Producer in Orange county in California, United States with commodities Lead, Zinc, Silver, Copper, 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. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10034302
MRDS ID M021058
Record type Site
Current site name Ortega
Alternate or previous names Old Dominion
Related records 10116166

Geographic coordinates

Geographic coordinates: -117.43837, 33.6606 (WGS84)
Elevation 1036
Relative position HEAD OF LONG CYN., 6 MILES WEST OF ELSINORE

Site location context

Political divisions (FIPS codes)

Orange(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alberhill(quadrangle 1:24,000 scale)

Santa Ana(quadrangle 1:100,000 scale)

Santa Ana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aliso-San Onofre(hydrologic unit)

Laguna-San Diego Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Cleveland 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 Orange

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 006S 005W 07 California

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary
Copper Secondary
Gold Secondary

Materials information

Materials Type of material
Galena Ore
Pyrite Ore
Silver Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -117.43837, 33.6606
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Displaced Vein At Northern End, Strike Of Fault Is North, Dips 35 W.

Ore body information

  • Strike N 20 W
    Dip 45 E
    Thickness 2.44M
    Length 91.44M

Comments on the geologic information

  • GEOL.DESC: FORMATION IN WHICH VEIN OCCURS IS A CRYSTALLINE ROCK, VARIES FROM DARK - BROWN FELSITE TO A FINELY BANDED QUARTZOSE ROCK.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1942

Land status

Ownership category National Forest

Production statistics

  • Year 1942
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^.02 Oz Au, 25.8 Oz Ag, .3 % Cu, 3.5 % Pb, 3.1 % Zn. 21 % Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Lead Lead 4wt-pct
    Minor Ore Copper Copper 0wt-pct
    Major Ore Silver Silver 729g/mt
    Major Ore Gold Gold 1g/mt
    Ore Iron Iron 21wt-pct
    Ore Zinc Zinc 3wt-pct

Comments on the production information

  • SMELTER RECOVERY; 5.12 % PB, 26.64 OZ AG/TON, AND RECOVERABLE COPPER. EARLIER PRODUCTION NOT KNOWN

Comments on the workings information

  • INCLINED SHAFT 60 FT., OVER 900 FT. OF DRIFTS, WINZES AND CROSSCUTS.

Reference information

Bibliographic references

  • Deposit

    GOODWIN, J. G., 1957 : LEAD AND ZINC IN CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NOS. 3 & 4 ; DIV. OF MINES, P. 586

  • Deposit

    TUCKER, W. B., 1943 : CURRENT MINING ACTIVITY, S. CALIF.; CALIF. JOUR. MINES AND GEOLOGY, VOL. 39 , NO. 2 ; DIV. OF MINES, P. 123 - 124

  • Production

    GOODWIN, J. G., 1957

General comments

Subject category Comment text
Deposit VEIN 6 - 8 FT.
Deposit COMPRISED OF 640 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Fraticelli, L. A. (Albers, J.) 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.