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Stone description: porous
| Wall Number | Country | State Sort descending | Classification | Source |
|---|---|---|---|---|
| 5LB27 | Austria | Conglomerate | Lindabrunn | |
| 7LA4 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 14LB37 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 9RA26 | Australia | Sandstone | New South Wales | |
| 9LA27 | Australia | Sandstone | New South Wales | |
| 13LB29 | Italy | Limestone | Leghorn | |
| 4L7 | Australia | Sandstone | New South Wales | |
| 4L8 | Australia | Sandstone | New South Wales | |
| 14RA37 | Hungary | Limestone | Kroisbach | |
| 4R7 | Australia | Sandstone | New South Wales | |
| 14RA38 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 4R8 | Australia | Sandstone | New South Wales | |
| 7LB9 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 13RA31 | Austria | Marble | Sterzing | |
| 9RA45 | Canada | Sandstone | Dorchester, New Brunswick | |
| 13RA35 | Spain | Limestone | Murcia, Murcia | |
| 9RA46 | Canada | Sandstone | Georgetown, Ontario | |
| 13RA36 | Hungary | Limestone | Breitenbrunn | |
| 6RB37 | Mexico | Tuff | Oaxaca State | |
| 9RB24 | Australia | Sandstone | New South Wales | |
| 9LB26 | Australia | Sandstone | New South Wales | |
| 9RB25 | Australia | Sandstone | New South Wales | |
| 10LA38 | Mexico | Dacite | Mexico State | |
| 9LB27 | Australia | Sandstone | New South Wales | |
| 10LA50 | Canada | Sandstone | Sackville, New Brunswick | |
| 7RA5 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 7RA7 | Hungary | Limestone | Mannersdorf | |
| 8RB36 | Scotland | Sandstone | Nairn | |
| 8LB36 | Scotland | Sandstone | Thurso | |
| 11LB28 | Scotland | Sandstone | Ballochmyle | |
| 14LA37 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 14LA38 | Hungary | Limestone | Oszlopp | |
| 13LA36 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 13RA47 | United States | Alabama | Limestone | Rockwood |
| 16C | United States | Alabama | Limestone | Rockwood |
| 9RB34 | United States | Alabama | Sandstone | DaKalb County |
| 12RB40 | United States | Alabama | Limestone | Turks Cave |
| 2c | United States | Alabama | Limestone | Rockwood |
| S2-132 | United States | Idaho | Sandstone | Boise |
| S2-8 | United States | Idaho | Sandstone | Boise |
| 9RA43 | United States | Idaho | Sandstone | Boise |
| 23EE | United States | Idaho | Sandstone | Boise |
| 9RA41 | United States | Illinois | Sandstone | Carbondale |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 9RA42 | United States | Illinois | Sandstone | Xenia |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 9LA42 | United States | Illinois | Sandstone | Chester |
| 14RB4 | United States | Illinois | Dolomite | Kankakee |
| 13RB39 | United States | Illinois | Limestone | Columbia |
| 8C | United States | Indiana | Limestone | Bloomington |
| 10RB14 | United States | Indiana | Limestone | Stinesville |
| 4LB12 | United States | Indiana | Limestone | Salem |
| 9LA38 | United States | Indiana | Sandstone | Cannelton |
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 4RB12 | United States | Indiana | Limestone | Salem |
| 11C | United States | Indiana | Limestone | Lawrence Co. |
| 5C | United States | Indiana | Limestone | Lawrence Co. |
| 10C | United States | Indiana | Limestone | Bloomington |
| 12LA35 | United States | Indiana | Limestone | Spencer |
| 12LB35 | United States | Indiana | Limestone | Bedford |
| 13RB42 | United States | Indiana | Limestone | Bedford |
| 12RA1 | United States | Indiana | Limestone | Bedford |
| 9LB40 | United States | Indiana | Sandstone | French Lick Twp. |
| 9LB41 | United States | Indiana | Sandstone | Williamsport |
| 14C | United States | Indiana | Limestone | Bedford |
| 7C | United States | Indiana | Limestone | Bloomington |
| 9RB39 | United States | Indiana | Sandstone | Paoli |
| 12RA32 | United States | Indiana | Limestone | Salem |
| 9RB40 | United States | Indiana | Sandstone | Attica |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 6C | United States | Indiana | Limestone | ? |
| 14LB16 | United States | Iowa | Dolomite | Clemont |
| 14RA14 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 11RB15 | United States | Iowa | Dolomite | Lansing |
| 14RA15 | United States | Iowa | Dolomite | Winterset |
| 13RA14 | United States | Iowa | Dolomite | Dixon Sta. |
| 13RA16 | United States | Iowa | Dolomite | Stone City |
| 13RA18 | United States | Iowa | Limestone | Vinton |
| 14RB17 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 9RA44 | United States | Iowa | Sandstone | Davenport |
| 14RB18 | United States | Iowa | Dolomite | Dixon |
| 11LA15 | United States | Iowa | Dolomite | Clinton |
| 9RA9 | United States | Iowa | Limestone | Tracey Station, Marion Co. |
| 11LA16 | United States | Iowa | Dolomite | Anamosa |
| 12LA16 | United States | Iowa | Dolomite | Maquoketa |
| 10LA18 | United States | Iowa | Limestone | Marshalltown |
| 13RB16 | United States | Iowa | Dolomite | Farley |
| 12RA16 | United States | Iowa | Dolomite | Farley |
| 11LB26 | United States | Iowa | Sandstone | Lewis |
| 14LA14 | United States | Iowa | Dolomite | Mt. Vernon |
| 9RA12 | United States | Iowa | Limestone | Iowa City |
| 14LA16 | United States | Iowa | Dolomite | Stone City |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 10RA31 | United States | Kansas | Sandstone | Parsons |
| 11Ra25 | United States | Kansas | Limestone | Cottonwood |
| 10RA32 | United States | Kansas | Sandstone | Parsons |
| 11RA27 | United States | Kansas | Limestone | Cottonwood |
| 13RA23 | United States | Kansas | Limestone | Augusta |
| 8LA39 | United States | Kansas | Sandstone | Oswego |