Flagstone Mines in New York
20Total Sites
8Active
Flagstone Mining in New York
New York has 20 flagstone-related mine and mineral deposit locations recorded in federal databases. Of these, 8 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Delaware County | 5 |
| Albany County | 4 |
| St. Lawrence County | 4 |
| Greene County | 3 |
| Ulster County | 2 |
| Franklin County | 1 |
| Tompkins County | 1 |
Flagstone Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Alcove Quarry | Albany | Surface | Producer |
| Downsville Quarry and Mill | Delaware | Surface | Producer |
| East Branch Quarry | Delaware | Surface | Producer |
| Grippee Quarry | Albany | Surface | Producer |
| Heldeberg Bluestone Quarry & Mill | Albany | Surface | Producer |
| Knox Quarry | Albany | Surface | Producer |
| Reynolds Quarry | Delaware | Surface | Producer |
| University Quarry | Tompkins | Surface | Producer |
| Cairo Blue Sandstone Quarry | Greene | Surface | Past Producer |
| Northern Adriondack Quarry | Franklin | Surface | Past Producer |
| Quarryville Blue Sandstone Quarry | Ulster | Surface | Past Producer |
| Saugerties Blue Sandstone Quarry | Ulster | Surface | Past Producer |
| Saxton Blue Sandstone Quarry | Greene | Surface | Past Producer |
| South Potic Mountain Blue Ss Quarry | Greene | Surface | Past Producer |
| Thompkins Bluestone Quarry. | Delaware | Surface | Past Producer |
| Unnamed Sandstone Quarry | St. Lawrence | Surface | Past Producer |
| Unnamed Sandstone Quarry | St. Lawrence | Surface | Past Producer |
| Unnamed Sandstone Quarry | St. Lawrence | Surface | Past Producer |
| Unnamed Sandstone Quarry | St. Lawrence | Surface | Past Producer |
| Willis Hankins Bluestone | Delaware | Surface | Past Producer |