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Lead Hill Deposit

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

Geologic information

Identification information

Deposit ID 10106255
MRDS ID W032240
Record type Site
Current site name Lead Hill Deposit

Geographic coordinates

Geographic coordinates: -73.47453, 43.86747 (WGS84)
Elevation 299
Relative position 3 MI. NW OF TICONDEROGA

Site location context

Political divisions (FIPS codes)

Essex(county)

New York(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ticonderoga(quadrangle 1:24,000 scale)

Ticonderoga(quadrangle 1:100,000 scale)

Glens Falls(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States New York Essex

Commodities

Commodity Importance
Graphite Critical Primary
Sulfur-Pyrite Tertiary

Materials information

Materials Type of material
Graphite Ore
Augite Gangue
Calcite Gangue
Garnet Gangue
Scapolite Gangue
Tourmaline Gangue
Pyrite Unknown

Alteration

  • (Local) Oxidation Of Pyrite

Analytical data

Result GRAPHITE 99.87% C, 0.11% H, ASH 0.02%. AVERAGE SIZE .38 X .55 MM. ORE 6% GRAPHITE.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Grenville Series; Meta-Sediments (Schist, Marble, Quartzite, Amph Ibolite)
    Rock description Grenville Series; Meta-Sediments (Schist, Marble, Quartzite, Amph Ibolite)

Nearby scientific data

(1) Beekmantown Group (in part)
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike N85E
    Dip 52S

Controls for ore emplacement

  • Pegmatite Sweat From Original Carbonaceous Material.

Comments on the geologic information

  • FOUR DIFFERENT SEDIMENTARY UNITS ARE IN CONTACT WITH THE PEGMATITE GRANITE. ALL HAVE BEEN PRODUCERS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1842
Year of first production 1855

Mining district

District name New York Northern Graphite Area

Land status

Ownership category State Park

Ownership information

  • Type Operator
    Owner Ticonderoga Graphite Co.
  • Type Owner
    Owner American Graphite Co.

Comments on the workings information

  • NUMEROUS PITS SCATTERED OVER THE SOUTH AND SE SLOPES OF THE HILL INCLUDE WOODCHUCK, YOUNG LION, OLD LION, HIGHER WORKINGS, FRYATT, AND SIXTH WORKINGS. SEVERAL PITS AND ADITS LOCATED AND SAMPLED SEPT, 1982.

Comments on development

  • MAY HAVE BEEN THE FIRST GRAPHITE DEPOSIT EXPLOITED IN THE U.S. SI TE WAS KNOWN IN 1842.

Reference information

Bibliographic references

  • Deposit

    ALLING, H.L., 1918, THE ADIRONDACK GRAPHITE DEPOSITS, N.Y. ST. MUSE UM BULL., NO. 199, 150P

General comments

Subject category Comment text
Deposit EXPOSURE OF PURE FOLIATED GRAPHITE SEVERAL INCHES ACROSS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1982 Sutphin, David M. U.S. Geological Survey

Beyond USGS

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

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