Wall Number | Country | State Sort descending | Classification | Source |
---|---|---|---|---|
10RB17 | Spain | Limestone | Ricla, Saragossa | |
6RA41 | United States | Maryland | Argillite (Slate) | Nr. Cardiff |
6La45 | United States | Michigan | Argillite (Slate) | Arvon |
11RB37 | United States | New Jersey | Sandstone | Woodsville |
9RB4 | United States | North Carolina | Marble | Valley Town |
10RB20 | United States | Pennsylvania | Argillite (Slate) | Slatington |
10RB21 | United States | Pennsylvania | Argillite (Slate) | Slatington |
14RB9 | United States | Pennsylvania | Dolomite | Chambersburg |
6LB15 | United States | Pennsylvania | Argillite (Slate) | Slatington |
6RB15 | United States | Pennsylvania | Argillite (Slate) | Bangor |
7LA17 | United States | Pennsylvania | Argillite (Slate) | Slatington |
7RA17 | United States | Pennsylvania | Argillite (Slate) | Slatedale |
8La18 | United States | Pennsylvania | Argillite (Slate) | Bangor |
9Lb19 | United States | Pennsylvania | Argillite (Slate) | Chapman's Station |
5RA44 | United States | Vermont | Argillite (Slate) | Castleton |