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Stone description: Lower Silurian
| Wall Number | Country | State | Classification Sort descending | Source |
|---|---|---|---|---|
| 11RB15 | United States | Iowa | Dolomite | Lansing |
| 13LB12 | United States | New Jersey | Dolomite | Newton |
| 13RB9 | United States | Pennsylvania | Dolomite | Potts Landing Berk's Co. |
| 14RA10 | United States | Pennsylvania | Dolomite | Mill Lane Chester Co. |
| 10LA5 | United States | Wisconsin | Dolomite | Oshkosh |
| 14La10 | United States | Pennsylvania | Dolomite | Kerberburgh |
| 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 |
| 10LA49 | United States | Michigan | Quartzite | Vulcan |
| 5RB26 | United States | Maryland | Conglomerate | Cumberland |