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Stone description: Lower Silurian
| Wall Number | Country | State | Classification Sort descending | Source |
|---|---|---|---|---|
| 13LA4 | United States | Wisconsin | Dolomite | River Falls Pierce Co. |
| 12LA8 | United States | Minnesota | Dolomite | Frontenac |
| 13LA5 | United States | Wisconsin | Dolomite | La Crosse |
| 12LA9 | United States | Pennsylvania | Dolomite | Orbisonia |
| 13LA7 | United States | Minnesota | Dolomite | Stillwater |
| 14RB9 | United States | Pennsylvania | Dolomite | Chambersburg |
| 13LA8 | United States | Pennsylvania | Dolomite | Plymouth |
| 11La17 | United States | Iowa | Dolomite | Lansing |
| 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 |
| 10LA49 | United States | Michigan | Quartzite | Vulcan |
| 5RB26 | United States | Maryland | Conglomerate | Cumberland |