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Stone description: dark gray
| Wall Number | Country | State | Classification Sort ascending | Source |
|---|---|---|---|---|
| 8RA6 | United States | New York | Limestone | Sandy Hill |
| 13LB45 | United States | Kentucky | Limestone | Green Co. |
| 14RB46 | United States | Kentucky | Limestone | Stewart's Mill Clark Co. |
| 8RA9 | Canada | Limestone | Montreal | |
| 12LB7 | United States | New York | Limestone | Le Roy |
| 13RA26 | Canada | Limestone | Montreal region | |
| 14RB47 | United States | Kentucky | Limestone | Bloomfield |
| 13RB42 | United States | Indiana | Limestone | Bedford |
| 7RA11 | United States | Connecticut | Limestone | Shelterville |
| 13RB5 | United States | New York | Limestone | Kingston |
| 13RB8 | United States | Pennsylvania | Limestone | Morrell |
| 9LA14 | Spain | Limestone | Murcia, Murcia | |
| 12RB23 | United States | Kansas | Limestone | Oswego |
| 12RB24 | United States | Tennessee | Limestone | Lebanon Pike |
| 14LB45 | United States | Kentucky | Limestone | Pineville |
| 1R9 | United States | Massachusetts | Granite | Quincy |
| 5RA21 | United States | Massachusetts | Granite | W. Quincy |
| 5LA23 | United States | North Carolina | Granite | Davidson College |
| 8LB27 | United States | Maine | Granite | St. George |
| 6LA41 | United States | South Carolina | Granite | Aiken Co. |
| 6RB22 | United States | Massachusetts | Granite | Rockport |
| 5LA31 | United States | Colorado | Granite | Salida |
| 6RB26 | United States | Maine | Granite | Bryant's Pond |
| 5RB12 | United States | Massachusetts | Granite | Quincy |
| 6RB42 | United States | South Carolina | Granite | Batesburg |
| 5RB13 | United States | Massachusetts | Granite | Quincy |
| 5RB14 | United States | Massachusetts | Granite | Quincy |
| 10RB23 | United States | Massachusetts | Granite | Framingham |
| 5La40 | United States | South Carolina | Granite | Greenville |
| 5RB17 | United States | Massachusetts | Granite | Quincy |
| 8RB24 | United States | North Carolina | Granite | Oxford |
| 5LB19 | United States | Massachusetts | Granite | Leominister |
| 5RB18 | United States | Massachusetts | Granite | Quincy |
| 6RA22 | United States | Massachusetts | Granite | W. Quincy |
| 1L7 | United States | Massachusetts | Granite | Quincy |
| 5RB19 | United States | Massachusetts | Granite | Quincy |
| 7RA25 | United States | Maine | Granite | Canaan |
| 1L8 | United States | Massachusetts | Granite | Quincy |
| 5RB20 | United States | Massachusetts | Granite | Quincy |
| 6RA34 | United States | Minnesota | Granite | E. St. Cloud |
| 1L9 | United States | Massachusetts | Granite | Quincy |
| 11LB38 | United States | Virginia | Granite | Fredericksburg |
| 1R7 | United States | Massachusetts | Granite | Quincy |
| 1R8 | United States | Massachusetts | Granite | Quincy |
| 5LB9 | United States | Massachusetts | Granite | Clinton |
| 9RA23 | United States | Massachusetts | Granite | W. Quincy |