| Deposit ID | 10271732 |
|---|---|
| MAS/MILS ID | 0330159001 |
| Record type | Site |
| Current site name | National Gypsum Co--Portsmouth, Nh. |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -70.76695, 43.08807 (WGS84) |
| Elevation | 9 |
Political divisions (FIPS codes)
Rockingham(county)
New Hampshire(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Portsmouth(quadrangle 1:24,000 scale)
Kittery(quadrangle 1:100,000 scale)
Portland(quadrangle 1:250,000 scale)
| Country | State | County |
|---|---|---|
| United States | New Hampshire | Rockingham |
| Commodity | Importance |
|---|---|
| Gypsum-Anhydrite | Primary |
| Ore Body (1) | -70.76695, 43.08807 |
|---|
| Operation type | Processing Plant |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | National Gypsum Co. |
| ID | 2700027 |
| Year | 1978 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0330159001 | |
| Mine Safety and Health Administration | MSHA | MSHA | 2700027 |
MESA INSPECTORS
LOCATION VERIFIED FROM MSHA 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 | Abandoned since 05/30/1979 |
|---|---|
| MSHA mine ID | 2700027 |
| Mine name (MSHA) | Portsmouth Mill |
| Current operator | National Gypsum Company |
| Current controller (parent) | Lafarge S A |
| Mine type | Facility (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MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date.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.