Northern Light Group

Producer in Gila county in Arizona, United States with commodity Mercury
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. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10040379
MRDS ID M055113
Record type Site
Current site name Northern Light Group
Alternate or previous names Bowman and Reynolds, Gila County Group, Gold Creek Group, Bernice No. 1, Big Tunnel

Geographic coordinates

Geographic coordinates: -111.42682, 33.98646 (WGS84)
Elevation 1646
Relative position 0.5 MILE SOUTH OF PINE MOUNTAIN IN MAZATZAL MTNS. ON GOLD CREEK.

Site location context

Political divisions (FIPS codes)

Gila(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Reno Pass(quadrangle 1:24,000 scale)

Theodore Roosevelt Lake(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Tonto(hydrologic unit)

Salt(hydrologic accounting unit)

Salt(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Tonto 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 Gila

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 007N 009E 03 Arizona

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Calcite Gangue
Quartz Gangue

Analytical data

Result ASSAY SHOWS 1.4 PCT HG ON BERNICE NO. 1. CLAIM. ON MERCURY SULFIDE NO. 5 ASSAY SHOWS 3.3 PCT. HG.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Red Rock Porphyry
    Rock description Red Rock Porphyry
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -111.42682, 33.98646

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Trending Metavolcanic Metasedimentary Sequence, Ne Intrusions Of Porphyritic Rhyolite.

Ore body information

  • General form STRINGERS
    Dip 70 E
    Length 4572M

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1914
Discoverer Reynolds And E.H. Bowman

Mining district

District name Mazatzal Mountains District

Land status

Ownership category National Forest
Area name Tonto National Forest

Ownership information

  • Type Operator
    Owner Robert Mcghee

Production statistics

  • Year 1960
    Period To 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^8 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 3614g/mt

Comments on the workings information

  • 10 FT. SHAFT., TUNNELS, 60 FT. CROSSCUT, 20 FT. DRIFT. OPEN CUTS. MINE ACTIVE IN 1960.

Reference information

Bibliographic references

  • Deposit

    ARIZ. BUREAU MINES, 1927, BULL. 122.

  • Deposit

    BAILEY, E.H., USGS, PERSONAL FILES.

  • Deposit

    BECKMAN, R.T. AND KERNS, W.H., 1965, MERCURY IN ARIZONA: USBM IC 8252.

  • Production

    USBM UNPUB DATA

General comments

Subject category Comment text
Deposit QUARTZ STRINGERS IN SCHIST. SCHIST AVERAGES ABOUT 60 FT. WIDE AND CONTAINS CINNABAR STRINGERS. CINNABAR OCCURRENCE IS SPOTTY. STRINGERS UP TO 6 IN WIDE.
Deposit NORTHERN LIGHT GROUP CONSISTS OF 10 CLAIMS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1973 Bergquist, Joel R. U.S. Geological Survey
Updater 01-JUL-1979 Hall, R. K. (Creasey, S. C.) U.S. Geological Survey

Beyond USGS

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

Authoritative Arizona resources

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