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Stone description: porous
| Wall Number | Country | State | Classification | Source Sort descending |
|---|---|---|---|---|
| 5LB4 | United States | Ohio | Sandstone | New Philadelphia |
| 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 | |
| 9RA22 | United States | Ohio | Sandstone | Newark |
| 5LB6 | United States | Ohio | Sandstone | Newark |
| 6LA20 | United States | Ohio | Sandstone | Newark |
| 7LB40 | United States | New Jersey | Sandstone | Newark |
| 8LA42 | United States | New Jersey | Sandstone | Newark |
| 5LB2 | United States | Ohio | Sandstone | Newburgh |
| 5LB5 | United States | Ohio | Sandstone | Newburgh |
| 8RA4 | United States | Tennessee | Limestone | Nolensville Pike |
| 6LB12 | United States | Pennsylvania | Sandstone | Norristown |
| 5La2 | United States | Ohio | Sandstone | Norwalk |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 6RB37 | Mexico | Tuff | Oaxaca State | |
| 6LB3 | United States | Pennsylvania | Sandstone | Oil City |
| 7LA40 | United States | New Jersey | Sandstone | Orange Mt. |
| 12LB14 | United States | Missouri | Dolomite | Osage |
| 8LA39 | United States | Kansas | Sandstone | Oswego |
| 14LA38 | Hungary | Limestone | Oszlopp | |
| 8RB45 | United States | Wisconsin | Sandstone | Packwaukee |
| 9RB39 | United States | Indiana | Sandstone | Paoli |
| 11La38 | United States | Tennessee | Sandstone | Parksville |
| 10RA31 | United States | Kansas | Sandstone | Parsons |
| 10RA32 | United States | Kansas | Sandstone | Parsons |
| 7LA39 | United States | New Jersey | Sandstone | Patterson |
| 11LB31 | United States | Kansas | Sandstone | Pawnee |
| 5LA3 | United States | Ohio | Sandstone | Peninsula |
| 5LA9 | United States | Ohio | Sandstone | Piketon |
| 5LA5 | United States | Ohio | Sandstone | Piketon |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 7LB39 | United States | New Jersey | Sandstone | Pleasant Val. |
| 6LA43 | United States | New Jersey | Sandstone | Pleasant Val. |
| 5LA18 | United States | Ohio | Sandstone | Plymouth |
| 6LA46 | United States | Michigan | Sandstone | Portage Entry |
| 5RA34 | United States | Connecticut | Conglomerate | Portland |
| 8RB35 | United States | Connecticut | Sandstone | Portland |
| 8LA20 | United States | Ohio | Sandstone | Portsmouth |
| 7Lb19 | United States | Ohio | Sandstone | Portsmouth |
| 12LA11 | United States | Ohio | Dolomite | Pt. Marblehead |
| 14RB17 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 11LA2 | United States | Michigan | Dolomite | Raisinville |
| 9RA24 | United States | North Carolina | Sandstone | Raleigh |
| 6L48 | United States | North Carolina | Sandstone | Raleigh |
| 9LA25 | United States | North Carolina | Sandstone | Raleigh |
| 9RA25 | United States | North Carolina | Sandstone | Raleigh |
| 9LA26 | United States | North Carolina | Sandstone | Raleigh |
| 6R48 | United States | North Carolina | Sandstone | Raleigh |
| 9La32 | United States | Texas | Sandstone | Range |
| 9RA39 | United States | Wyoming | Sandstone | Rawlins |
| 6LA12 | United States | Pennsylvania | Sandstone | Reading |
| 11Lb32 | United States | Utah | Sandstone | Red Butte |
| 6RA21 | United States | Ohio | Sandstone | Ridgeville |
| 11LB11 | United States | Ohio | Dolomite | Riley Twp. Putnam Co. |
| 8Lb32 | United States | Texas | Sandstone | Riverside |
| 9RA34 | United States | Missouri | Sandstone | Rockville |
| 5LA15 | United States | Ohio | Sandstone | Rockville |
| 8LB37 | United States | Missouri | Sandstone | Rockville |
| 13RA47 | United States | Alabama | Limestone | Rockwood |
| 16C | United States | Alabama | Limestone | Rockwood |
| 2c | United States | Alabama | Limestone | Rockwood |
| 6RB16 | United States | Pennsylvania | Diabase | Round Top Gettysburg |
| 10LA50 | Canada | Sandstone | Sackville, New Brunswick | |
| 4LB12 | United States | Indiana | Limestone | Salem |
| 4RB12 | United States | Indiana | Limestone | Salem |
| 12RA32 | United States | Indiana | Limestone | Salem |
| 11Lb35 | United States | Virginia | Sandstone | Saltville |
| 13RB10 | United States | Ohio | Dolomite | Sandusky |
| 8LA24 | United States | North Carolina | Sandstone | Sanford |
| 7LA45 | United States | New Mexico | Sandstone | Santa Fe |
| 6LA5 | United States | Pennsylvania | Sandstone | Scranton |
| 11RA37 | United States | Tennessee | Sandstone | Sewanee |
| 11La40 | United States | Tennessee | Sandstone | Sewanee |
| 6LB11 | United States | Pennsylvania | Sandstone | Sharon |
| 7RB28 | United States | California | Sandstone | Sites |
| 10RA22 | United States | Kansas | Limestone | Smoky Hill Reservation |
| 12LA35 | United States | Indiana | Limestone | Spencer |
| 13LB10 | United States | Ohio | Dolomite | Springfield |
| 13RA11 | United States | Ohio | Dolomite | Springfield |
| 10RB36 | United States | Missouri | Sandstone | St. Genevieve |
| 13RA31 | Austria | Marble | Sterzing | |
| 8LA21 | United States | Ohio | Sandstone | Steubensville Jefferson Co. |
| 8LB21 | United States | Ohio | Sandstone | Steubensville Jefferson Co. |
| 10RB14 | United States | Indiana | Limestone | Stinesville |
| 6LA42 | United States | New Jersey | Sandstone | Stockton |
| 13RA16 | United States | Iowa | Dolomite | Stone City |
| 14LA16 | United States | Iowa | Dolomite | Stone City |
| 6La10 | United States | Pennsylvania | Sandstone | Stoneboro |
| 7LB44 | United States | Michigan | Sandstone | Stony Point |
| 10Lb19 | United States | Pennsylvania | Sandstone | Stoop's Ferry |
| 5LA10 | United States | Ohio | Sandstone | Sunbury |
| 6RB39 | United States | Ohio | Sandstone | Sunbury |