| Deposit ID | 10223490 |
|---|---|
| MRDS ID | W020208 |
| MAS/MILS ID | 0330130002 |
| Record type | Site |
| Current site name | Concord Gray Quarry |
| Alternate or previous names | Swenson Gray Quarry |
| Related records | 10074005 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -71.57167, 43.23667 (WGS84) |
| Elevation | 79 |
Political divisions (FIPS codes)
Merrimack(county)
New Hampshire(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Concord(quadrangle 1:24,000 scale)
Concord(quadrangle 1:100,000 scale)
Portland(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Winnipesaukee River(hydrologic unit)
Merrimack(hydrologic accounting unit)
Merrimack(hydrologic subregion)
New England(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | New Hampshire | Merrimack |
| Commodity | Importance |
|---|---|
| Granite | Primary |
| Ore Body (1) | -71.57167, 43.23667 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | John Swenson Granite Co. |
| ID | 2700083 |
| Year | 1978 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0330130002 | |
| USGS | Mineral Resources Data System | MRDS | W020208 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 2700083 |
MSHA UPDATE 1978
RCF & CMS LISTS 10/81
| 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 | Active since 12/29/1982 |
|---|---|
| MSHA mine ID | 2700083 |
| Mine name (MSHA) | SWENSON GRAY QUARRY |
| Current operator | Swenson Granite Company LLC |
| Current controller (parent) | Polycor Inc |
| 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MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date.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.