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Stone description: Lower Silurian
| Wall Number | Country | State | Classification Sort descending | Source |
|---|---|---|---|---|
| 10La8 | United States | Pennsylvania | Dolomite | Easton |
| 13RA7 | United States | Minnesota | Dolomite | Mankato |
| 14RA5 | United States | Wisconsin | Dolomite | Buffalo Co. |
| 14RA6 | United States | Wisconsin | Dolomite | Neenah |
| 11LA6 | United States | Minnesota | Dolomite | Kasota |
| 11RB4 | United States | Wisconsin | Dolomite | Buffalo Co. |
| 12LB8 | United States | Minnesota | Dolomite | Kasota |
| 14RA8 | United States | Minnesota | Dolomite | Reading |
| 12RB9 | United States | Minnesota | Dolomite | Winona |
| 14RB10 | United States | Pennsylvania | Dolomite | Leaman Place Lancaster Co. |
| 14RB15 | United States | Iowa | Dolomite | Dubuque |
| 10RA11 | United States | Pennsylvania | Dolomite | York |
| 11LB6 | United States | Pennsylvania | Dolomite | Harrisburg |
| 13LB7 | United States | Minnesota | Dolomite | Canon City |
| 10LA49 | United States | Michigan | Quartzite | Vulcan |
| 5RB26 | United States | Maryland | Conglomerate | Cumberland |