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Tower Hill Granite Rock Quarry

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

Geologic information

Identification information

Deposit ID 10067778
MRDS ID W000613
Record type Site
Current site name Tower Hill Granite Rock Quarry

Geographic coordinates

Geographic coordinates: -72.55896, 41.68387 (WGS84)

Site location context

Political divisions (FIPS codes)

Hartford(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Glastonbury(quadrangle 1:24,000 scale)

Hartford(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Outlet Connecticut River(hydrologic unit)

Lower Connecticut(hydrologic accounting unit)

Connecticut(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Hartford

Commodities

Commodity Importance
Stone, Dimension Primary

Comments on the commodity information

  • ON TOPO SHEET QUARRY IS 400 FEET LONG NORTH-SOUTH, 200 FEET WIDE EAST-WEST AND ABOUT 40 FEET DEEP. ONE OR TWO WORKERS STILL CUT CURBSTONE FOR REPLACEMENT IN 1950. MAJOR ACTIVITY ENDED ABOUT 1940 FOR CURBSTONES FROM IMMEDIATE AREA. GNEISS FOLIATION N 55 DEG. EAST, DIP 25 DEG. NORTH; SHEETS ONE TO TWO FEET THICK. ORIGINALLY NAMED BELDEN QUARRY.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -72.55896, 41.68387
ListMap

Economic information

Ore body information

  • Strike N. 55 DEG. EAST
    Dip 25 DEG. NORTH

Controls for ore emplacement

  • Igneous Intrusive

Comments on the geologic information

  • GEOL.DESC: LARGE GRANITE MASSIF; CUT BY PEGMATITE DIKES 3 TO 6 INCHES THICK, STRIKE N 80 DEG. WEST, DATED ABOUT 260 M.Y.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Production years 1908 TO 1950

Mining district

District name Glastonbury

Comments on the production information

  • STILL ACTIVE 1950 WHEN VISITED BY SUGGARD. FIGURES LACKING BUT QUARRY CUT IS OF MODERATE SIZE.

Comments on the reserve resource information

  • FIGURES LACKING BUT LARGE VOLUME OF ROCK REMAINS.

Workings at the site

  • Type of workings Surface
    Overall length 121.92M
    Overall width 60.96M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    DALE, T.N., 1911, "GRANITES OF CONN.", USGS BULL. NO. 484, MAPS, TEXT, P. 64

  • Production

    STUGARD, 1958

General comments

Subject category Comment text
Deposit USGS TOPO, 1964, "GLASTONBURY" AT 1:24000 LOCATES QUARRY BY SYMBOL. BROOKINS, D.G. GIVES AGE OF ABOUT 260 M.Y. FOR GLASTONBURY PEGMATITES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

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

Current status (per MSHA)

StatusActive since 11/29/2024
MSHA mine ID0600664
Mine name (MSHA)TOWER HILL GRANITE
Current operatorTOWER HILL GRANITE COMPANY INC
Current controller (parent)Michael A Schera; Jeffrey A Schena
Mine typeSurface (Metal / non-metal)

Inferred by coordinate + name similarity (179 m, 0.88 match). Confirm against MSHA if precision matters — non-USGS-curated cross-references may occasionally point at a neighbouring mine.

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