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Stone description: porous
| Wall Number | Country | State | Classification Sort ascending | Source |
|---|---|---|---|---|
| 5LB27 | Austria | Conglomerate | Lindabrunn | |
| 5RA34 | United States | Connecticut | Conglomerate | Portland |
| 9LA36 | United States | New Jersey | Conglomerate | May's Landing Atlantic Co. |
| 6RB13 | United States | Pennsylvania | Conglomerate | Friedensburg |
| 8RA42 | United States | Oregon | Basalt | Clackamas Station Clackamas Co |
| 6RB37 | Mexico | Tuff | Oaxaca State | |
| 10LA38 | Mexico | Dacite | Mexico State | |
| 6RB16 | United States | Pennsylvania | Diabase | Round Top Gettysburg |
| 13LA5 | United States | Wisconsin | Dolomite | La Crosse |
| 13RA7 | United States | Minnesota | Dolomite | Mankato |
| 12LA8 | United States | Minnesota | Dolomite | Frontenac |
| 13LB10 | United States | Ohio | Dolomite | Springfield |
| 13RB10 | United States | Ohio | Dolomite | Sandusky |
| 12LB14 | United States | Missouri | Dolomite | Osage |
| 13RB16 | United States | Iowa | Dolomite | Farley |
| 14RA12 | United States | Ohio | Dolomite | Tiffin |
| 11LA6 | United States | Minnesota | Dolomite | Kasota |
| 13ra10 | United States | Ohio | Dolomite | Bellefountaine |
| 14ra13 | United States | Ohio | Dolomite | Columbus Grove |
| 10La9 | United States | Kansas | Dolomite | Marion Center |
| 11LB11 | United States | Ohio | Dolomite | Riley Twp. Putnam Co. |
| 13RA11 | United States | Ohio | Dolomite | Springfield |
| 14RA14 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 11LB12 | United States | Ohio | Dolomite | Eaton |
| 11RB15 | United States | Iowa | Dolomite | Lansing |
| 13RA14 | United States | Iowa | Dolomite | Dixon Sta. |
| 14RA15 | United States | Iowa | Dolomite | Winterset |
| 12RA13 | United States | Ohio | Dolomite | Lima |
| 13RA16 | United States | Iowa | Dolomite | Stone City |
| 12RA16 | United States | Iowa | Dolomite | Farley |
| 14LA12 | United States | Ohio | Dolomite | Yellow Springs |
| 14LA14 | United States | Iowa | Dolomite | Mt. Vernon |
| 14LA16 | United States | Iowa | Dolomite | Stone City |
| 14RA5 | United States | Wisconsin | Dolomite | Buffalo Co. |
| 14RB17 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 10RA13 | United States | Ohio | Dolomite | White House |
| 11RB9 | United States | Kansas | Dolomite | Marion Center |
| 14RB18 | United States | Iowa | Dolomite | Dixon |
| 10RA14 | United States | Ohio | Dolomite | Van Wert |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 14RB4 | United States | Illinois | Dolomite | Kankakee |
| 10RA15 | United States | Ohio | Dolomite | White House |
| 11LA15 | United States | Iowa | Dolomite | Clinton |
| 12LA10 | United States | Ohio | Dolomite | Euphemia |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 14LB11 | United States | Ohio | Dolomite | Greenfield |
| 11LA16 | United States | Iowa | Dolomite | Anamosa |
| 12LA11 | United States | Ohio | Dolomite | Pt. Marblehead |
| 14LB12 | United States | Ohio | Dolomite | Tiffin |
| 10LA11 | United States | Ohio | Dolomite | Lima |
| 11LA2 | United States | Michigan | Dolomite | Raisinville |
| 12LA16 | United States | Iowa | Dolomite | Maquoketa |
| 14LB16 | United States | Iowa | Dolomite | Clemont |
| 13RA31 | Austria | Marble | Sterzing | |
| 10RA31 | United States | Kansas | Sandstone | Parsons |
| 11LB45 | United States | Kentucky | Sandstone | Whitney Co. |
| 5LA15 | United States | Ohio | Sandstone | Rockville |
| 6L48 | United States | North Carolina | Sandstone | Raleigh |
| 6La9 | United States | Pennsylvania | Sandstone | Waynesburgh |
| 6RA21 | United States | Ohio | Sandstone | Ridgeville |
| 7RA39 | United States | New Jersey | Sandstone | Belleville |
| 8EE | United States | Ohio | Sandstone | Amherst |
| 8LB28 | United States | New York | Sandstone | Hulberton |
| 8RA24 | United States | North Carolina | Sandstone | Durham |
| 8RB21 | United States | Ohio | Sandstone | Amherst |
| 9LA25 | United States | North Carolina | Sandstone | Raleigh |
| 9LB23 | United States | Ohio | Sandstone | Marietta |
| 9RA25 | United States | North Carolina | Sandstone | Raleigh |
| 9RB24 | Australia | Sandstone | New South Wales | |
| S2-10 | United States | Ohio | Sandstone | McDermott |
| 10RA32 | United States | Kansas | Sandstone | Parsons |
| 11La38 | United States | Tennessee | Sandstone | Parksville |
| 17WE | United States | Ohio | Sandstone | McDermott |
| 3RQ | United States | Ohio | Sandstone | Amherst |
| 5LA16 | United States | Ohio | Sandstone | Windsor |
| 5Lb3 | United States | Ohio | Sandstone | Zanesville |
| 5RA4 | United States | Ohio | Sandstone | Buena Vista |
| 6La10 | United States | Pennsylvania | Sandstone | Stoneboro |
| 6LB11 | United States | Pennsylvania | Sandstone | Sharon |
| 6RA3 | United States | Pennsylvania | Sandstone | Hummelstown |
| 6RB39 | United States | Ohio | Sandstone | Sunbury |
| 7LA40 | United States | New Jersey | Sandstone | Orange Mt. |
| 7RA42 | United States | Michigan | Sandstone | Marquette |
| 8L48 | United States | Ohio | Sandstone | Berea |
| 8LB31 | United States | Kentucky | Sandstone | Cloveport |
| 8RA25 | United States | North Carolina | Sandstone | Egypt |
| 8RB32 | United States | Texas | Sandstone | Back Bone Valley |
| 9LA26 | United States | North Carolina | Sandstone | Raleigh |
| 9LB26 | Australia | Sandstone | New South Wales | |
| 9RA26 | Australia | Sandstone | New South Wales | |
| 9RB25 | Australia | Sandstone | New South Wales | |
| S2-126 | United States | Wyoming | Sandstone | Laramie |
| 11La40 | United States | Tennessee | Sandstone | Sewanee |
| 18WE | United States | Ohio | Sandstone | McDermott |
| 4L7 | Australia | Sandstone | New South Wales | |
| 5La17 | United States | Ohio | Sandstone | Wooster |
| 5LB4 | United States | Ohio | Sandstone | New Philadelphia |
| 5RA5 | United States | Ohio | Sandstone | Marietta |
| 6LA12 | United States | Pennsylvania | Sandstone | Reading |
| 6LB12 | United States | Pennsylvania | Sandstone | Norristown |