Flagstone Mines
455Total Sites
73Active
Top States
| State | Sites |
|---|---|
| Pennsylvania | 137 |
| Oklahoma | 32 |
| California | 30 |
| Iowa | 28 |
| Colorado | 25 |
| Connecticut | 21 |
| New York | 20 |
| Ohio | 18 |
| Missouri | 18 |
| Washington | 16 |
| Arkansas | 16 |
| Massachusetts | 12 |
| Nevada | 9 |
| Indiana | 8 |
| Wisconsin | 7 |
Notable Sites
| Mine | State | County | Status |
|---|---|---|---|
| Alcove Quarry | New York | Albany | Producer |
| Avon Grove Quarry | Pennsylvania | Chester | Producer |
| Basin Quarry | Montana | Jefferson | Producer |
| Blm Rock Pile | California | Monterey | Producer |
| Briar Hill Brinkhaven Pit | Ohio | Knox | Producer |
| Briar Hill Martinsburg Pit | Ohio | Knox | Producer |
| Briar Hill Pit | Ohio | Coshocton | Producer |
| Briar Hill Quarry | Ohio | Coshocton | Producer |
| Briar Hill Stone Quarry | Ohio | Coshocton | Producer |
| Cabot Quarry & Mill No 2 | Arkansas | Lonoke | Producer |
| Cabot Quarry And Mill No 2 | Arkansas | Lonoke | Producer |
| Clarks Knob Quarry | Pennsylvania | Franklin | Producer |
| Clendenin Quarry | West Virginia | Kanawha | Producer |
| Cleveland Quarry | Ohio | Erie | Producer |
| Colson Summit Quarry | California | Santa Barbara | Producer |
| Conotton Valley Quarry | Ohio | Carroll | Producer |
| Crab Orchard Mill | Tennessee | Cumberland | Producer |
| Davis Mine | Tennessee | Cumberland | Producer |
| Delaware Qys | Pennsylvania | Bucks | Producer |
| Dequeen Rock Quarry | Arkansas | Sevier | Producer |
| Downsville Quarry And Mill | New York | Delaware | Producer |
| Dugout Quarry | Arkansas | White | Producer |
| E.r.rice Quarry | Ohio | Coshocton | Producer |
| East Branch Quarry | New York | Delaware | Producer |
| Freeman And Sondgroth | California | Marin | Producer |
| Green & Conrad Quarry | Pennsylvania | Susquehanna | Producer |
| Grieb Ranch Quarry | California | San Luis Obispo | Producer |
| Grippee Quarry | New York | Albany | Producer |
| Hall Quarry | North Carolina | Montgomery | Producer |
| Heldeberg Bluestone Quarry & Mill | New York | Albany | Producer |
| High Mountain Quarry | Pennsylvania | Tioga | Producer |
| Honeybrook Quarry | Pennsylvania | Chester | Producer |
| Hoyes Quarry And Plant | Maryland | Garrett | Producer |
| Huninger Quarry | Ohio | Coshocton | Producer |
| Jacobsen Quarry | Iowa | Fayette | Producer |
| Jerusalem Quarry | Georgia | Pickens | Producer |
| Johnson Quarry | Indiana | Lawrence | Producer |
| Jude Sandstone Quarry | Michigan | Jackson | Producer |
| Jude Stone Quarry | Michigan | Jackson | Producer |
| Kenyon Pit | Kansas | Graham | Producer |
| Knox Quarry | New York | Albany | Producer |
| L B Barbee Sandstone Pit | Oklahoma | Haskell | Producer |
| Lamb Quarry | Alabama | Blount | Producer |
| Lantana Building Stone Quarry | Tennessee | Cumberland | Producer |
| Las Cruces Quarry | California | Santa Barbara | Producer |
| Mason Pit | Oklahoma | Pittsburg | Producer |
| Mauldin Pit | Arkansas | Montgomery | Producer |
| Mineral Bluff Quarry | Georgia | Fannin | Producer |
| Mitchell Sandstone Quarry | Pennsylvania | Susquehanna | Producer |
| Morrisons Flagstone Pit And Mill | Pennsylvania | Susquehanna | Producer |