National Mine

Producer in Santa Cruz county in Arizona, United States with commodities Copper, Silver, Gold, Lead
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10048327
MRDS ID M899905
Record type Site
Current site name National Mine
Alternate or previous names Erin, National Consolidated Mine
Related records 10208124

Geographic coordinates

Geographic coordinates: -110.78235, 31.40931 (WGS84)
Elevation 1463
Relative position 4 MILES EAST OF NOGALES INTERANTIONAL AIRPORT

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cumero Canyon(quadrangle 1:24,000 scale)

Nogales(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 023S 015E 23 NW OF NW OF SE Arizona

Comments on the location information

  • ON THE NORTH BANK OF CANADA DE LA PALOMA; 1 3/4 MILES SW OF O'MARA MINE ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary
Lead Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Limonite Gangue

Alteration

  • (Local) Minor Oxidation; Granite Porphyry Altered Near Vein

Analytical data

Result EARLY 1900'S ORE VALUES AVERAGED 6.5% CU, 21 OZ/TON AG, 1.1% PB, 0.4 OZ./TON AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Jurassic
    Chronological age 160
    Dating method Pb-Alpha
    Type of media Zircon

Nearby scientific data

(1) -110.78235, 31.40931

Economic information

Geologic structures

Type of structure Regional
Structure description Deposits In Region Are Mainly Lead-Silver Quartzitic Veins Which Strike E-W At About Right Angles To Axis Of Range
Type of structure Local
Structure description Deposits Mainly In Coarse Granite Porphyry Which Intrudes Quartz Monzonite; Monzonite Outcrops Nearby To Ne

Ore body information

  • General form TABULAR
    Strike EAST-WEST
    Dip 70S
    Width 1.07M

Controls for ore emplacement

  • E-W Trending Quartz Vein Between Contact Of Granite Porphyry And Diorite, Which Porphyry Intrudes; Other Veins On Property Associated With Strong Fault Shear Zone

Comments on the geologic information

  • GROSS BELT AND FOOTHILLS SEPARATED FROM STEEP SLOPES OF RANGE BY PIEDMONT-LIKE VALLEY ALONG WHICH PIEDMONT FAULT RUNS; FAULT EXTENDS NORTHWARDS FOR 6 MILES

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1899
Discoverer George Gross
Year of first production 1906
Year of last production 1915

Mining district

District name Patagonia District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner National Consolidated Mining Co.
    First year 1906
    Last year 1915
  • Type Owner
    Owner George Gross, National Consolidated Mining Co.
    First year 1906
    Last year 1915

Workings at the site

  • Type of workings Underground
    Overall depth 60.96M

Comments on the workings information

  • SHAFT CONTAINS ABOUT 400 FT OF DRIFTS; NATIONAL NO. 4 PROSPECT LOCATED ON OPPOSITE SIDE OF CANADA DE LA PALOMA, IS OPENED BY A 90-FT. DRIFT AND 90-FT INCLINED WINZE

Reference information

Bibliographic references

  • Deposit

    USBM-ABGMT PRODUCTION DATA FILE

  • Deposit

    USBM FILE DATA-CLUSTER #22, NATIONAL MINE

  • Deposit

    SCHRADER, F.C., 1915, USGS BULL 582, P. 310-311

  • Deposit

    KEITH, S.B., 1975, ABM BULL 191, P. 81

  • Deposit

    ABGMT CLIPPINGS FILE NATIONAL MINE

  • Deposit

    ABGMT FILES STANTON B. KEITH

  • Deposit

    SIMONS, FRANK S., 1974 GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)

General comments

Subject category Comment text
Deposit BEST COPPER ORE AT DEPTH; NATIONAL NO. 4 PROSPECT IS ON A 2-FT. SILICEOUS GALENA-SILVER VEIN WHICH DIPS 50S IN GRANITE PORPHYRY AND IS PARTLY ASSOCIATED WITH A FAULT SHEAR ZONE
Deposit NATIONAL MINE IS AT NORTH END OF SERIES OF PROPERTIES COMPRISED IN A BELT ABOUT 1.0 MILE WIDE WHICH EXTENDS SOUTHWARD FROM PALOMA CANYON TO PROVIDENCIA CANYON FOR A DISTANCE OF ABOUT 2.5 MILES, AND IS REFERRED TO AS THE GROSS BELT ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1982 Laraba, Peter (Calder, Susan) Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.