New Hampshire · MSHA record
Swenson Gray Quarry
Swenson Granite Company LLC
- MSHA operator
- Swenson Granite Company LLC
- Source name
- SWENSON GRAY QUARRY
- Quarry / operation
- SWENSON GRAY QUARRY
- Location
- Concord, New Hampshire
- Color families
- Gray
- MSHA ID
- 2700083
- Reported status
- Active · since 12/29/1982MSHA snapshot: 18 Sept 2026
- Record type
- Quarry / mining operation
Reported workforce
31 workers in this MSHA record
MSHA’s NO_EMPLOYEES field comes from the Mine Information Form. The snapshot is dated 18 Sept 2026; it does not give this field a reporting-period date. These are mine-record figures, not current company headcounts or proof of production.
MSHA field definitions Explore PolycorRegister classification
Architectural producer
Curated group: Polycor
A research classification, separate from MSHA operating status.
Related material listings
Concord Gray GraniteConfirm before specifying
Open MSHA source datasetAsk the supplier about current availability, material range, fabrication and test data for your application. A listing or MSHA status does not establish supply readiness.
MSHA snapshot dated 18 Sept 2026. Company names identify operators, not verified parent-company ownership.