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Stone description: some with cleavage horizontal
| Wall Number Sort descending | Country | State | Classification | Source |
|---|---|---|---|---|
| S2-11 | United States | Maryland | Schist | Potomac |
| S2-12 | United States | Maryland | Schist | Potomac |
| S2-13 | United States | Maryland | Schist | Potomac |
| S2-14 | United States | Maryland | Schist | Potomac |
| S2-15 | United States | Maryland | Schist | Potomac |
| S2-16 | United States | Maryland | Schist | Potomac |
| S2-17 | United States | Maryland | Schist | Potomac |
| S2-18 | United States | Maryland | Schist | Potomac |
| S2-19 | United States | Maryland | Schist | Potomac |
| S2-20 | United States | Maryland | Schist | Potomac |
| S2-21 | United States | Maryland | Schist | Potomac |
| S2-22 | United States | Maryland | Schist | Potomac |
| S2-23 | United States | Maryland | Schist | Potomac |
| S2-24 | United States | Maryland | Schist | Potomac |
| S2-25 | United States | Maryland | Schist | Potomac |
| S2-26 | United States | Maryland | Schist | Potomac |
| S2-27 | United States | Maryland | Schist | Potomac |
| S2-28 | United States | Maryland | Schist | Potomac |
| S2-29 | United States | Maryland | Schist | Potomac |
| S2-30 | United States | Maryland | Schist | Potomac |
| S2-31 | United States | Maryland | Schist | Potomac |
| S2-32 | United States | Maryland | Schist | Potomac |
| S2-33 | United States | Maryland | Schist | Potomac |
| S2-34 | United States | Maryland | Schist | Potomac |
| S2-35 | United States | Maryland | Schist | Potomac |
| S2-36 | United States | Maryland | Schist | Potomac |
| S2-37 | United States | Maryland | Schist | Potomac |
| S2-38 | United States | Maryland | Schist | Potomac |
| S2-39 | United States | Maryland | Schist | Potomac |
| S2-40 | United States | Maryland | Schist | Potomac |
| S2-41 | United States | Maryland | Schist | Potomac |
| S2-42 | United States | Maryland | Schist | Potomac |
| S2-43 | United States | Maryland | Schist | Potomac |
| S2-44 | United States | Maryland | Schist | Potomac |
| S2-45 | United States | Maryland | Schist | Potomac |
| S2-46 | United States | Maryland | Schist | Potomac |