Bear Hill Mine

Past Producer in Marion county in Arkansas, United States with commodity Zinc

Geologic information

Identification information

Deposit ID 10081015
MRDS ID W032568
Record type Site
Current site name Bear Hill Mine
Related records 10284704

Geographic coordinates

Geographic coordinates: -92.75989, 36.30425 (WGS84)
Elevation 343
Relative position 3.6 MILES NORTH OF GEORGE'S CREEK, AND 6.3 MILES N.NW OF YELLVILLE.
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Geographic areas

Country State County
United States Arkansas Marion

Public Land Survey System information

Meridian Township Range Section Fraction State
5th Principal 19N 17W 11 NE4 OF SW4 Arkansas

Comments on the location information

  • NORTHEAST OF THE CLEAR JACK MINE ; INFO FROM LAND.ST :1969

Commodities

Commodity Importance
Zinc Primary

Materials information

Materials Type of material
Sphalerite Ore

Analytical data

Result ZN, 66.46%
Result S, 32.30
Result SIO2, 0.25
Result FE, 0.15
Result MG, 0.20
Result CA 0.51
Result CD , TRACE. TOTAL, 99.87%

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Stratigraphic age (youngest) Late Ordovician

Nearby scientific data

(1) -92.75989, 36.30425

Ore body information

  • General form IRREGULAR
    Dip GENTLE DIP TO SE IN THE WEST DRIFT

Controls for ore emplacement

  • Veins, Disseminated Ores Associated With Brecciated Zones

Comments on the geologic information

  • SPHALERITE MOSTLY IN A SLIGHTLY BRECCIATED DARK GRAY DOLOMITE ASSOCIATED WITH CALCITE. THIS IS A UNIQUE SITE AS IT IS THE FIRST ONE DESCRIBED AS HAVING LARGE 'VEINS' OF SPHALERITE.

Economic information

Economic information about the deposit and operations

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

Mining district

District name North Arkansas Zinc Region

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Overall depth 47.85M

Comments on the workings information

  • FIVE DRIFTS RUN FROM THE SHAFT; N, NE, S, E, & W. NE DRIFT WAS THE RKHEST. ORE FOUND IN ALL DRIFTS. NE SHAFT IS AT 135 FOOT-LEVEL. ORE BEARING ZONE IS FROM THE 70-FOOT LEVEL TO THE 135-FOOT LEVEL. A CAVED IN 40 FOOT TUNNEL RUNS EAST INTO THE HILL AT THE TOP OF THE SHAFT. SHAFT 2 IS 35-40 FEET DEEP, STARTING AT AN ALTITUDE 40 FEET BELOW THAT OF SHAFT 1. SPHALERITE IN VEINS AND DISSEMINATED WAS FOUND ONLY IN THE UPPER 10 FEET OF IT. SHAFT ONE OPENS UPON THE BOTTOM OF A GULCH.

Comments on development

  • THERE WAS A STEAM CRUSHER AND HOIST AND ONE HAND JIG AT THESE MINES.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS W032568

Bibliographic references

  • Deposit

    ANNUAL REPORT OF THE GEOLOGICAL SURVEY OF ARKANSAS FOR 1892 (PUB. DEC, 1900), VOL V: THE ZN AND PB REGION OF NORTH ARK., BY STATE GEOLOGIST JOHN C. BRANNER, P. 112, 113, 114 USGS RESTON (241) AR5 (AND THE YELLVILLS SHEET IN THAT BOOK)

General comments

Subject category Comment text
Deposit ST. JOE FM. IS 30 FEET ABOVE THE MOUTH OF THE MAIN SHAFT. THE CHERT HAS SOLUTION CAVITIES LEFT BY SPHALERITE CRYSTALS. ORE DISPOSED TO RUN IN VERTICAL STREAKS UP TO TWENTY INCHES WIDE.
Deposit SHAFT AND ORE BINS WERE LOCKED AS THE SUPERINTENDENT WAS AWAY. MOST INFORMATION WAS GATHERED FROM PERSONS FAMILIAR WITH THE WORKINGS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1982 Wright, Noel J. (Calkins, James A.) U.S. Geological Survey