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Stone description: porous
| Wall Number | Country Sort ascending | State | Classification | Source |
|---|---|---|---|---|
| 14LA38 | Hungary | Limestone | Oszlopp | |
| 13LA36 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 7LA4 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 14LB37 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 14RA37 | Hungary | Limestone | Kroisbach | |
| 14RA38 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 7LB9 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 13RA36 | Hungary | Limestone | Breitenbrunn | |
| 7RA5 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 7RA7 | Hungary | Limestone | Mannersdorf | |
| 14LA37 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 9RA45 | Canada | Sandstone | Dorchester, New Brunswick | |
| 9RA46 | Canada | Sandstone | Georgetown, Ontario | |
| 10LA50 | Canada | Sandstone | Sackville, New Brunswick | |
| 5LB27 | Austria | Conglomerate | Lindabrunn | |
| 13RA31 | Austria | Marble | Sterzing | |
| 9RA26 | Australia | Sandstone | New South Wales | |
| 9LA27 | Australia | Sandstone | New South Wales | |
| 4L7 | Australia | Sandstone | New South Wales | |
| 4L8 | Australia | Sandstone | New South Wales | |
| 4R7 | Australia | Sandstone | New South Wales | |
| 4R8 | Australia | Sandstone | New South Wales | |
| 9RB24 | Australia | Sandstone | New South Wales | |
| 9LB26 | Australia | Sandstone | New South Wales | |
| 9RB25 | Australia | Sandstone | New South Wales | |
| 9LB27 | Australia | Sandstone | New South Wales | |
| 7RB39 | United States | New Jersey | Sandstone | Avondale |
| 8RQ | United States | Ohio | Sandstone | McDermont |
| S1-2 | United States | Ohio | Sandstone | McDermott |
| 10RA13 | United States | Ohio | Dolomite | White House |
| 12WE | United States | Ohio | Sandstone | McDermott |
| 28EE | United States | Ohio | Sandstone | McDermott |
| 5RB6 | United States | Ohio | Sandstone | Cumberland |
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 8r48 | United States | Ohio | Sandstone | Berea |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 11LB30 | United States | Missouri | Sandstone | Butler |
| 5LA7 | United States | Ohio | Sandstone | Millersburg |
| 6R48 | United States | North Carolina | Sandstone | Raleigh |
| 5La8 | United States | Ohio | Sandstone | Youngstown |
| 6RA11 | United States | Pennsylvania | Sandstone | Layton Station Fayette Co. |
| 7RB42 | United States | Michigan | Sandstone | Marquette |
| 9EE | United States | Ohio | Sandstone | Glenmont |
| S1-35 | United States | Ohio | Sandstone | Glenmont |
| 10RA14 | United States | Ohio | Dolomite | Van Wert |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 2c | United States | Alabama | Limestone | Rockwood |
| 5RB8 | United States | Ohio | Sandstone | Independence |
| 7LA31 | United States | Colorado | Sandstone | Fort Collins |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 9RA20 | United States | Pennsylvania | Sandstone | Uniontown |
| 11LB31 | United States | Kansas | Sandstone | Pawnee |
| 14La48 | United States | Texas | Limestone | Cedar Park |
| 11Lb32 | United States | Utah | Sandstone | Red Butte |
| 14LB11 | United States | Ohio | Dolomite | Greenfield |
| 5LA9 | United States | Ohio | Sandstone | Piketon |
| 6RA14 | United States | Pennsylvania | Sandstone | Fuller |
| 7RQ | United States | Ohio | Sandstone | Kipton |
| 9LA19 | United States | Pennsylvania | Sandstone | Curwensville |
| S1-36 | United States | Ohio | Sandstone | Amherst |
| 10RA15 | United States | Ohio | Dolomite | White House |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 2EE | United States | Ohio | Sandstone | Glenmont |
| 5RQ | United States | Ohio | Sandstone | Kipton |
| 7La32 | United States | Minnesota | Sandstone | Hinckley |
| 8RA20 | United States | Ohio | Sandstone | Elyria |
| 9RA21 | United States | Ohio | Sandstone | Monclava |
| 11Lb35 | United States | Virginia | Sandstone | Saltville |
| 14LB12 | United States | Ohio | Dolomite | Tiffin |
| 5LB1 | United States | Ohio | Sandstone | N. Hampton |
| 6RA15 | United States | Pennsylvania | Sandstone | Connellsville |
| 7WE | United States | South Dakota | Sandstone | Hot Springs |
| 9LA21 | United States | Ohio | Sandstone | Lancaster |
| S1-37 | United States | Ohio | Sandstone | Amherst |
| 10RA22 | United States | Kansas | Limestone | Smoky Hill Reservation |
| 2RQ | United States | Ohio | Sandstone | Amherst |
| 6C | United States | Indiana | Limestone | ? |
| 7La33 | United States | Connecticut | Sandstone | Cromwell |
| 8RA21 | United States | Ohio | Sandstone | Brooklyn |
| 9RA22 | United States | Ohio | Sandstone | Newark |
| 11LB41 | United States | Washington | Sandstone | Bellingham |
| 14LB16 | United States | Iowa | Dolomite | Clemont |
| 5LB2 | United States | Ohio | Sandstone | Newburgh |
| 6RA16 | United States | Pennsylvania | Sandstone | Goldsboro |
| 8C | United States | Indiana | Limestone | Bloomington |
| 9LA22 | United States | Ohio | Sandstone | Logan |
| S2-1 | United States | Wyoming | Sandstone | Laramie |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 2WE | United States | Texas | Limestone | Cedar Park |
| 6EE | United States | Ohio | Sandstone | McDermott |
| 7LA39 | United States | New Jersey | Sandstone | Patterson |
| 8RA23 | United States | Massachusetts | Sandstone | E. Long Meadow |
| 9RA24 | United States | North Carolina | Sandstone | Raleigh |
| 11LB45 | United States | Kentucky | Sandstone | Whitney Co. |
| 14LB28 | United States | Tennessee | Limestone | Davidson Co. |
| 6RA21 | United States | Ohio | Sandstone | Ridgeville |
| 8EE | United States | Ohio | Sandstone | Amherst |
| 9LA25 | United States | North Carolina | Sandstone | Raleigh |
| S2-10 | United States | Ohio | Sandstone | McDermott |