Northern Light Group

The Northern Light Group is a mercury mine located in Gila county, Arizona at an elevation of 5,400 feet.

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About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Northern Light Group

State: Arizona

County: Gila

Elevation: 5,400 Feet (1,646 Meters)

Primary Mineral: Mercury

Lat, Long: 33.98639, -111.42611

Satelite image of the Northern Light Group

Northern Light Group MRDS details

Site Name

Primary: Northern Light Group
Secondary: Bowman and Reynolds
Secondary: Gila County Group
Secondary: Gold Creek Group
Secondary: Bernice No. 1
Secondary: Big Tunnel

Commodity

Primary: Mercury

Location

State: Arizona
County: Gila
District: Mazatzal Mountains District

Land Status

Land ownership: National Forest
Administrative Organization: Tonto National Forest

Holdings

Workings

Ownership

Owner Name: Robert Mcghee

Production

Year: 1960
Time Period: To 1960
Material type: HG
Description: Cp_Grade: ^8 Lb/Ton

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1914
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Orebody

Form: STRINGERS

Structure

Type: R
Description: Ne Trending Metavolcanic Metasedimentary Sequence, Ne Intrusions Of Porphyritic Rhyolite.

Alterations

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: ASSAY SHOWS 1.4 PCT HG ON BERNICE NO. 1. CLAIM. ON MERCURY SULFIDE NO. 5 ASSAY SHOWS 3.3 PCT. HG.

Materials

Ore: Cinnabar

Gangue: Calcite

Gangue: Quartz

Comments

Comment Type: Workings	Comment: 10 FT. SHAFT., TUNNELS, 60 FT. CROSSCUT, 20 FT. DRIFT. OPEN CUTS. MINE ACTIVE IN 1960.
Comment Type: Deposit	Comment: NORTHERN LIGHT GROUP CONSISTS OF 10 CLAIMS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment Type: Deposit	Comment: QUARTZ STRINGERS IN SCHIST. SCHIST AVERAGES ABOUT 60 FT. WIDE AND CONTAINS CINNABAR STRINGERS. CINNABAR OCCURRENCE IS SPOTTY. STRINGERS UP TO 6 IN WIDE.

References

Reference Category: Deposit	Reference: ARIZ. BUREAU MINES, 1927, BULL. 122.
Reference Category: Deposit	Reference: BAILEY, E.H., USGS, PERSONAL FILES.
Reference Category: Deposit	Reference: BECKMAN, R.T. AND KERNS, W.H., 1965, MERCURY IN ARIZONA: USBM IC 8252.
Reference Category: Production	Reference: USBM UNPUB DATA