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Stone description: porous
| Wall Number | Country | State Sort ascending | Classification | Source |
|---|---|---|---|---|
| 9LA44 | United States | Florida | Sandstone | Suwannee River |
| 7LA10 | United States | Florida | Limestone | Key West |
| 8LA35 | United States | Connecticut | Sandstone | E. Haven |
| 10RQ | United States | Connecticut | Sandstone | Fair Haven |
| 14RQ | United States | Connecticut | Sandstone | Fair Haven |
| 5RA34 | United States | Connecticut | Conglomerate | Portland |
| 8RB35 | United States | Connecticut | Sandstone | Portland |
| 8LB35 | United States | Connecticut | Sandstone | Manchester |
| 7La33 | United States | Connecticut | Sandstone | Cromwell |
| 9RA3 | United States | Colorado | Limestone | Morrison |
| 8RA33 | United States | Colorado | Sandstone | Longmont |
| 10RB32 | United States | Colorado | Sandstone | Fort Collins |
| 7RA31 | United States | Colorado | Sandstone | Coal Creek |
| 8RB33 | United States | Colorado | Sandstone | Fort Collins |
| 8LB33 | United States | Colorado | Sandstone | Canon City |
| 10LB38 | United States | Colorado | Sandstone | Fremont Co.- Ark. River |
| 7LA31 | United States | Colorado | Sandstone | Fort Collins |
| 6RA31 | United States | California | Sandstone | Haywards |
| 7LB29 | United States | California | Sandstone | Livermore |
| 7RA29 | United States | California | Sandstone | Angel Island |
| 6RB30 | United States | California | Sandstone | Alameda |
| 7RB28 | United States | California | Sandstone | Sites |
| S2-1 | United States | Wyoming | Sandstone | Laramie |
| S2-126 | United States | Wyoming | Sandstone | Laramie |
| 9RA39 | United States | Wyoming | Sandstone | Rawlins |
| 9Lb44 | United States | Wyoming | Sandstone | Laramie |
| 26WE | United States | Wyoming | Sandstone | Laramie |
| 13LA5 | United States | Wisconsin | Dolomite | La Crosse |
| 10RB48 | United States | Wisconsin | Sandstone | Ableman |
| 14RA5 | United States | Wisconsin | Dolomite | Buffalo Co. |
| 8RB16 | United States | Wisconsin | Limestone | Madison |
| 10Lb46 | United States | Wisconsin | Sandstone | Mauston |
| 8RB45 | United States | Wisconsin | Sandstone | Packwaukee |
| 10Lb47 | United States | Wisconsin | Sandstone | Mauston |
| 9La34 | United States | West Virginia | Sandstone | Kingwood |
| 9RA36 | United States | West Virginia | Sandstone | Kingwood |
| 9RB35 | United States | West Virginia | Sandstone | Charleston |
| 10Lb37 | United States | West Virginia | Sandstone | Grafton |
| 8LB39 | United States | West Virginia | Sandstone | Wheeling |
| 11LB41 | United States | Washington | Sandstone | Bellingham |
| 8RA46 | United States | Washington | Sandstone | Bellingham |
| 9LB43 | United States | Washington | Sandstone | Tenino |
| 8RB46 | United States | Washington | Sandstone | Tenino |
| 11RB29 | United States | Virginia | Sandstone | Manassas |
| 11Lb35 | United States | Virginia | Sandstone | Saltville |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 11Lb32 | United States | Utah | Sandstone | Red Butte |
| 2WE | United States | Texas | Limestone | Cedar Park |
| 3C | United States | Texas | Limestone | Cedar Park |
| 8RA32 | United States | Texas | Sandstone | Milsap |
| 9La32 | United States | Texas | Sandstone | Range |
| 10RB31 | United States | Texas | Sandstone | Mormon Mills |
| 14RA48 | United States | Texas | Limestone | Cedar Park |
| 8RB32 | United States | Texas | Sandstone | Back Bone Valley |
| 8Lb32 | United States | Texas | Sandstone | Riverside |
| 1WE | United States | Texas | Limestone | Cedar Park |
| 7RB30 | United States | Texas | Sandstone | Milsap |
| 14La48 | United States | Texas | Limestone | Cedar Park |
| 14LB28 | United States | Tennessee | Limestone | Davidson Co. |
| 11RA37 | United States | Tennessee | Sandstone | Sewanee |
| 11RA38 | United States | Tennessee | Sandstone | Ducktown |
| 8RA4 | United States | Tennessee | Limestone | Nolensville Pike |
| 11La38 | United States | Tennessee | Sandstone | Parksville |
| 11La40 | United States | Tennessee | Sandstone | Sewanee |
| 11RB26 | United States | South Dakota | Sandstone | Hot Springs |
| 7WE | United States | South Dakota | Sandstone | Hot Springs |
| 6RA16 | United States | Pennsylvania | Sandstone | Goldsboro |
| 6La10 | United States | Pennsylvania | Sandstone | Stoneboro |
| 6RA3 | United States | Pennsylvania | Sandstone | Hummelstown |
| 6LA12 | United States | Pennsylvania | Sandstone | Reading |
| 6La13 | United States | Pennsylvania | Sandstone | Monongahela City |
| 6LA15 | United States | Pennsylvania | Sandstone | Washington |
| 6RA4 | United States | Pennsylvania | Sandstone | Connellsville |
| 6La16 | United States | Pennsylvania | Sandstone | Titusville |
| 6RA6 | United States | Pennsylvania | Sandstone | Farrandsville |
| 6RA8 | United States | Pennsylvania | Sandstone | Homewood |
| 6RA9 | United States | Pennsylvania | Sandstone | Garland |
| 6LA3 | United States | Pennsylvania | Sandstone | Wampum |
| 6RB13 | United States | Pennsylvania | Conglomerate | Friedensburg |
| 6RB16 | United States | Pennsylvania | Diabase | Round Top Gettysburg |
| 6La4 | United States | Pennsylvania | Sandstone | Wampum |
| 6RB2 | United States | Pennsylvania | Sandstone | Franklin |
| 9Lb17 | United States | Pennsylvania | Sandstone | Homewood |
| 6RB3 | United States | Pennsylvania | Sandstone | Kiasola Station Beaver Co. |
| 8RB18 | United States | Pennsylvania | Sandstone | Fayette Station Fayette Co. |
| 6LA5 | United States | Pennsylvania | Sandstone | Scranton |
| 6La9 | United States | Pennsylvania | Sandstone | Waynesburgh |
| 6LB11 | United States | Pennsylvania | Sandstone | Sharon |
| 6RB5 | United States | Pennsylvania | Sandstone | Greenville |
| 6LB12 | United States | Pennsylvania | Sandstone | Norristown |
| 6RB7 | United States | Pennsylvania | Sandstone | Cannonsburgh |
| 6LB13 | United States | Pennsylvania | Sandstone | Beaver Falls |
| 6RB8 | United States | Pennsylvania | Sandstone | Black Walnut |
| 10Lb19 | United States | Pennsylvania | Sandstone | Stoop's Ferry |
| 6LB3 | United States | Pennsylvania | Sandstone | Oil City |
| 6LB7 | United States | Pennsylvania | Sandstone | Yardleyville |
| 9RA18 | United States | Pennsylvania | Sandstone | Meadville |
| 6LB9 | United States | Pennsylvania | Sandstone | Baden |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 9RA20 | United States | Pennsylvania | Sandstone | Uniontown |