| Deposit ID | 10192269 |
|---|---|
| MRDS ID | W019630 |
| MAS/MILS ID | 0090110002 |
| Record type | Site |
| Current site name | Lantern Hill Quarry |
| Alternate or previous names | Ottowa Silica Company, Conn. Div. |
| Related records | 10073526 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -71.9448, 41.45578 (WGS84) |
| Elevation | 90 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
New London(county)
Connecticut(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Old Mystic(quadrangle 1:24,000 scale)
Block Island(quadrangle 1:100,000 scale)
Providence(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Thames(hydrologic unit)
Connecticut Coastal(hydrologic accounting unit)
Connecticut Coastal(hydrologic subregion)
New England(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Connecticut | New London |
| Commodity | Importance |
|---|---|
| Stone, Crushed/Broken | Primary |
| Ore Body (1) | -71.9448, 41.45578 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Private |
|---|
| Type | Unknown |
|---|---|
| Owner | Ottawa Silica Co. |
| ID | 600018 |
| Year | 1981 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0090110002 | |
| USGS | Mineral Resources Data System | MRDS | W019630 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 0600018 |
MESA INSPECTRORS 1978
MESA HEALTH & SAFETY INSPECTION REPORTS AUG 20 1971 & JAN 10
MSHA INSPECTION REPORT 10/7/81
MSHA LISTS 1980 AND 1981
RCF LIST 10/81
# ASSOCIATED WITH MILL, SEQ. NO. 0090119002
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 02-NOV-1983 | Eastern Field Operations Center (EFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 06/01/1994 |
|---|---|
| MSHA mine ID | 0600018 |
| Mine name (MSHA) | Ledyard Plant |
| Current operator | U S Silica Company |
| Current controller (parent) | Rio Tinto Group |
| Mine type | Surface (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.