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Stone description: Lower carboniferous
| Wall Number | Country | State Sort descending | Classification | Source |
|---|---|---|---|---|
| 5LA10 | United States | Ohio | Sandstone | Sunbury |
| 6LB20 | United States | Ohio | Sandstone | Sunbury |
| 5LA16 | United States | Ohio | Sandstone | Windsor |
| 5La17 | United States | Ohio | Sandstone | Wooster |
| 6RA20 | United States | Ohio | Sandstone | Lancaster |
| 5LA18 | United States | Ohio | Sandstone | Plymouth |
| 6RA21 | United States | Ohio | Sandstone | Ridgeville |
| 5LA19 | United States | Ohio | Sandstone | Mt. Gilead |
| 9LB21 | United States | Ohio | Sandstone | Twinsburg |
| 6RB20 | United States | Ohio | Sandstone | Amherst |
| 10LB20 | United States | Ohio | Sandstone | Lancaster |
| 5La2 | United States | Ohio | Sandstone | Norwalk |
| 9LB22 | United States | Ohio | Sandstone | Mansfield |
| 6RB39 | United States | Ohio | Sandstone | Sunbury |
| 10RB22 | United States | Ohio | Sandstone | Warren |
| 5LA3 | United States | Ohio | Sandstone | Peninsula |
| 7Lb19 | United States | Ohio | Sandstone | Portsmouth |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 5LA6 | United States | Ohio | Sandstone | Weller Twp. Richland Co. |
| 7RA20 | United States | Ohio | Sandstone | Elyria |
| 5LA9 | United States | Ohio | Sandstone | Piketon |
| 9RA21 | United States | Ohio | Sandstone | Monclava |
| 5LB1 | United States | Ohio | Sandstone | N. Hampton |
| 9RA22 | United States | Ohio | Sandstone | Newark |
| 7RB19 | United States | Ohio | Sandstone | Amherst |
| 5LB2 | United States | Ohio | Sandstone | Newburgh |
| 7RB20 | United States | Ohio | Sandstone | Independence |
| 5LB5 | United States | Ohio | Sandstone | Newburgh |
| 5LB6 | United States | Ohio | Sandstone | Newark |
| 5LB7 | United States | Ohio | Sandstone | N. Bloomfield |
| 9RB20 | United States | Ohio | Sandstone | Harmer |
| 5RA10 | United States | Ohio | Sandstone | Berea |
| 8LA20 | United States | Ohio | Sandstone | Portsmouth |
| 5RA11 | United States | Ohio | Sandstone | Lithopolis |
| 5RA12 | United States | Ohio | Sandstone | Euclid |
| 8LB20 | United States | Ohio | Sandstone | Berea |
| 5RA16 | United States | Ohio | Sandstone | Leesville |
| 5RA18 | United States | Ohio | Sandstone | E. Cleveland |
| 5RA19 | United States | Ohio | Sandstone | Mansfield |
| 6La8 | United States | Pennsylvania | Sandstone | Altoona |
| 7RA14 | United States | Pennsylvania | Limestone | Connellsville |