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Stone description: Lower carboniferous
| Wall Number | Country | State | Classification Sort descending | Source |
|---|---|---|---|---|
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 9RB20 | United States | Ohio | Sandstone | Harmer |
| 5LA1 | United States | Ohio | Sandstone | Mt. Gilead |
| 5RA10 | United States | Ohio | Sandstone | Berea |
| 6La8 | United States | Pennsylvania | Sandstone | Altoona |
| 8LA20 | United States | Ohio | Sandstone | Portsmouth |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 9RB39 | United States | Indiana | Sandstone | Paoli |
| 5LA10 | United States | Ohio | Sandstone | Sunbury |
| 5RA11 | United States | Ohio | Sandstone | Lithopolis |
| 6LB20 | United States | Ohio | Sandstone | Sunbury |
| 8LA31 | United States | Kentucky | Sandstone | Johnson Co. |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 5LA16 | United States | Ohio | Sandstone | Windsor |
| 5RA12 | United States | Ohio | Sandstone | Euclid |
| 6LB30 | United States | Kentucky | Sandstone | Cloveport |
| 8LB20 | United States | Ohio | Sandstone | Berea |
| 9LA42 | United States | Illinois | Sandstone | Chester |
| 5La17 | United States | Ohio | Sandstone | Wooster |
| 5RA16 | United States | Ohio | Sandstone | Leesville |
| 6RA20 | United States | Ohio | Sandstone | Lancaster |
| 8LB31 | United States | Kentucky | Sandstone | Cloveport |
| 5LA18 | United States | Ohio | Sandstone | Plymouth |
| 5RA18 | United States | Ohio | Sandstone | E. Cleveland |
| 6RA21 | United States | Ohio | Sandstone | Ridgeville |
| 13RA15 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 14RA3 | United States | Illinois | Dolomite | Saline |
| 11LB15 | United States | Missouri | Dolomite | Sedalia |
| 12RB14 | United States | Missouri | Dolomite | St. Louis |
| 14RB16 | United States | Iowa | Dolomite | Franklin |
| 12RB16 | United States | Iowa | Dolomite | Humbolt |
| 14RB17 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 11RA14 | United States | Iowa | Dolomite | Lansing |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 14LA17 | United States | Iowa | Dolomite | Keokuk |
| 12LA15 | United States | Iowa | Dolomite | Marshalltown |
| 12LB12 | United States | Kentucky | Dolomite | Louisville |
| 12LB17 | United States | Iowa | Dolomite | Dakota Sta. |
| 14RA14 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 13RA13 | United States | Iowa | Dolomite | Humbolt |
| 14RA16 | United States | Iowa | Dolomite | Franklin |