Wall Number | Country | State Sort ascending | Classification | Source |
---|---|---|---|---|
10LA49 | United States | Michigan | Quartzite | Vulcan |
9LB15 | United States | Massachusetts | Marble | Stockbridge |
9RB15 | United States | Massachusetts | Marble | Alford |
13LB33 | United States | Massachusetts | Marble | Alford |
14LB42 | United States | Maryland | Marble | Cockeysville |
5RB26 | United States | Maryland | Conglomerate | Cumberland |
13RA40 | United States | Maryland | Marble | Cockeysville |
14RB47 | United States | Kentucky | Limestone | Bloomfield |
14RB15 | United States | Iowa | Dolomite | Dubuque |
11La17 | United States | Iowa | Dolomite | Lansing |
13LB16 | United States | Iowa | Limestone | Decorah |
11RB15 | United States | Iowa | Dolomite | Lansing |
12LA31 | United States | Illinois | Limestone | Joliet |
12RA30 | United States | Illinois | Limestone | Joliet |
7RA12 | United States | Georgia | Marble | Tate |
12lb39 | United States | Alabama | Limestone | Calera |