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Stone description: dark gray
| Wall Number | Country Sort descending | State | Classification | Source |
|---|---|---|---|---|
| 8RB42 | United States | Montana | Sandstone | Columbus |
| 14LB11 | United States | Ohio | Dolomite | Greenfield |
| 6RA40 | United States | Maryland | Gneiss | Ellicott City |
| 11Lb36 | United States | Virginia | Diabase | Catlett's Station |
| 5LB25 | United States | Maine | Diabase | Addison Point |
| 14LB14 | United States | Iowa | Dolomite | Osage Sta. |
| 6RA46 | United States | Michigan | Gneiss | Vulcan |
| 11LB38 | United States | Virginia | Granite | Fredericksburg |
| 5LB34 | United States | Minnesota | Gabbro | Duluth |
| 9RA17 | United States | Pennsylvania | Argillite (Slate) | Lynnport |
| 14LB45 | United States | Kentucky | Limestone | Pineville |
| 6RA5 | United States | Pennsylvania | Sandstone | Mauch Chunk |
| 11LB7 | United States | Pennsylvania | Dolomite | Reading |
| 5LB9 | United States | Massachusetts | Granite | Clinton |
| 9RA23 | United States | Massachusetts | Granite | W. Quincy |
| 14ra13 | United States | Ohio | Dolomite | Columbus Grove |
| 6RB10 | United States | Pennsylvania | Diabase | St. Peters |
| 11RA16 | United States | Iowa | Dolomite | Osage Sta. |
| 5RA21 | United States | Massachusetts | Granite | W. Quincy |
| 9RA5 | United States | Missouri | Limestone | New London |
| 14RA21 | United States | Iowa | Limestone | Washington |
| 6RB17 | United States | Pennsylvania | Gneiss | Philadelphia |
| 11RA22 | United States | Missouri | Limestone | Neosho |
| 5RA29 | United States | California | Basalt | Petaluma |
| 14RA27 | United States | Tennessee | Limestone | Nashville |
| 6RB19 | United States | Pennsylvania | Diabase | Reading |
| 11RA6 | United States | New York | Limestone | Buffalo |
| 5RA31 | United States | Georgia | Gneiss | Atlanta |
| 14RA3 | United States | Illinois | Dolomite | Saline |
| 6RB22 | United States | Massachusetts | Granite | Rockport |
| 11RB14 | United States | Missouri | Dolomite | Hermann |
| 14RA6 | United States | Wisconsin | Dolomite | Neenah |
| 6RB26 | United States | Maine | Granite | Bryant's Pond |
| 11RB30 | United States | Virginia | Schist | Farquier Co. |
| 5RA43 | United States | New Jersey | Diabase | Weehawken |
| 14RA9 | United States | Pennsylvania | Limestone | Vanport |
| 6RB42 | United States | South Carolina | Granite | Batesburg |
| 11RB31 | United States | Virginia | Diabase | Leesburg |
| 5RB12 | United States | Massachusetts | Granite | Quincy |
| 6RB43 | United States | New Jersey | Diabase | Rocky Hill |
| 12LA22 | United States | Missouri | Limestone | Pleasant Hill |
| 5RB13 | United States | Massachusetts | Granite | Quincy |
| 5LA26 | Austria | Pitchstone | Castleruth | |
| 8LA9 | Canada | Limestone | Kingston | |
| 8RA9 | Canada | Limestone | Montreal | |
| 13RA26 | Canada | Limestone | Montreal region |