Wall Number | Country | State | Classification | Source Sort descending |
---|---|---|---|---|
9Lb20 | United States | Pennsylvania | Conglomerate | Fairfield |
14RB42 | United States | Maryland | Marble | Frederick |
6RB12 | United States | Pennsylvania | Conglomerate | Pikesville |
10Ra48 | United States | Tennessee | Gneiss | Wolf Creek Cocke Co. |