Valley Forge Manganese Mine

Past Producer in Carter county in Tennessee, United States with commodities Manganese, Iron
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10025134
MRDS ID K000099
Record type Site
Current site name Valley Forge Manganese Mine
Related records 10153916

Geographic coordinates

Geographic coordinates: -82.17679, 36.30731 (WGS84)
Elevation 701
Relative position 1 MILE EAST OF VALLEY FORGE

Site location context

Political divisions (FIPS codes)

Carter(county)

Tennessee(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elizabethton(quadrangle 1:24,000 scale)

Johnson City(quadrangle 1:100,000 scale)

Johnson City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Watauga, North Carolina, Tennessee(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Federal lands

Cherokee 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 Tennessee Carter

Commodities

Commodity Importance
Manganese Critical Primary
Iron Secondary

Comments on the commodity information

  • ORE METALLURGICAL & CHEMICAL GRADES

Materials information

Materials Type of material
Limonite Ore
Pyrolusite Ore

Analytical data

Result MN-42-46%
Result FE 4-8%
Result SIO2 9-12%
Result P-0.12%
Result H2O 5.72%

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Shady Dolomite;Erwin Formation, Upper Quartzite Member
    Rock description Shady Dolomite;Erwin Formation, Upper Quartzite Member
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -82.17679, 36.30731

Economic information

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Residual Clay

Comments on the geologic information

  • NO UNWEATHERED DOLOMITE EXPOSED NEAR MINE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Year of first production 1917

Mining district

District name Hampton District

Ownership information

  • Type Operator
    Owner Tennessee Valley Manganese Corp.

Comments on the production information

  • PRODUCTION YEARS 1917 - 1930 & 1933 - 1935.

Workings at the site

  • Type of workings Surface/Underground
    Length 33.53M

Comments on the workings information

  • BADLY CAVED WORKINGS COVER SEVERAL ACRES

Comments on development

  • PRE 1917 FOR IRON ORE; 1917-1918 FOR MANGANESE BY VALLEY FORGE MINING CO; 1918-1930 INACTIVE, 1930 FOR MANGANESE BY ROAN MINING CO; 1933-1935 FOR MANGANESE BY TENN VALLEY MANGANESE CORP; INACTIVE 1935

Reference information

Bibliographic references

  • Deposit

    KING, P.B., FERGUSON, H.W., CRAIG, L.C., RODGERS, JOHN, 1944, GEOLOGY AND MANGANESE DEPOSITS OF NORTHEASTERN TENNESSEE: TENNESSEE DIV. GEOLOGY BULL. 52, 275P

  • Deposit

    1944 GEOLMAP KING P.B. AND OTHER

  • Production

    KING, P.B. AND OTHERS, 1944, TENN. DIV. GEOL. BULL. 52

General comments

Subject category Comment text
Deposit WORKINGS ON FLAT TOPPED GRAVEL-CAPPED BENCH. EVIDENTLY REMINANTS OF OLD VALLEY FLOOR
Deposit MOST OF ORE REMAINING IN MAIN CUT IS LOW GRADE. SPURS NORTHEAST OF MINE APPEAR TO BE FAVORABLE FOR ORE ACCUMULATION BUT NONE HAS BEEN REPORTED. ; INFO.SRC : 1 PUB LIT
Deposit First Production Year: PRE 1917 FOR IRON; POST 1918 FOR MANGANESE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Fagan, James M. U.S. Geological Survey

Beyond USGS

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