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Stone description: porous
| Wall Number | Country | State Sort descending | Classification | Source |
|---|---|---|---|---|
| 6WE | United States | Ohio | Sandstone | Amherst |
| 7RB20 | United States | Ohio | Sandstone | Independence |
| 5RB2 | United States | Ohio | Sandstone | Canal Dover Tuscarawas Co. |
| 14LA12 | United States | Ohio | Dolomite | Yellow Springs |
| 5LA3 | United States | Ohio | Sandstone | Peninsula |
| 24EE | United States | Ohio | Sandstone | Glenmont |
| 5RB3 | United States | Ohio | Sandstone | Bedford |
| 7EE | United States | Ohio | Sandstone | McDermott |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 6LB39 | United States | Ohio | Sandstone | Youngstown |
| 25WE | United States | Ohio | Sandstone | Amherst |
| 5RB4 | United States | Ohio | Sandstone | Bellaire |
| 5LA5 | United States | Ohio | Sandstone | Piketon |
| 9WE | United States | Ohio | Sandstone | McDermott |
| 5RB5 | United States | Ohio | Sandstone | Brownhelm |
| 7LA19 | United States | Ohio | Sandstone | Akron |
| 5LA6 | United States | Ohio | Sandstone | Weller Twp. Richland Co. |
| S1-1 | 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 |
| 8r48 | United States | Ohio | Sandstone | Berea |
| 5LA7 | United States | Ohio | Sandstone | Millersburg |
| 8RQ | United States | Ohio | Sandstone | McDermont |
| S1-2 | United States | Ohio | Sandstone | McDermott |
| 10RA14 | United States | Ohio | Dolomite | Van Wert |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 5RB8 | United States | Ohio | Sandstone | Independence |
| 5La8 | United States | Ohio | Sandstone | Youngstown |
| 9EE | United States | Ohio | Sandstone | Glenmont |
| S1-35 | United States | Ohio | Sandstone | Glenmont |
| 11RB33 | United States | Oregon | Sandstone | Jacksonville |
| 8RA42 | United States | Oregon | Basalt | Clackamas Station Clackamas Co |
| 11RB34 | United States | Oregon | Sandstone | Dallas |
| 9Lb34 | United States | Oregon | Sandstone | Jacksonville |
| 9Lb37 | United States | Oregon | Sandstone | Forest Grove |
| 9RB38 | United States | Oregon | Sandstone | Near Albany |
| 6RA14 | United States | Pennsylvania | Sandstone | Fuller |
| 9LA19 | United States | Pennsylvania | Sandstone | Curwensville |
| 6RA15 | United States | Pennsylvania | Sandstone | Connellsville |
| 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 |
| 8RB18 | United States | Pennsylvania | Sandstone | Fayette Station Fayette Co. |
| 6RB3 | United States | Pennsylvania | Sandstone | Kiasola Station Beaver 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 |
| 6RA11 | United States | Pennsylvania | Sandstone | Layton Station Fayette Co. |
| 7WE | United States | South Dakota | Sandstone | Hot Springs |
| 11RB26 | United States | South Dakota | Sandstone | Hot Springs |
| 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 |
| 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 |
| 11Lb32 | United States | Utah | Sandstone | Red Butte |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 11Lb35 | United States | Virginia | Sandstone | Saltville |
| 11RB29 | United States | Virginia | Sandstone | Manassas |
| 11LB41 | United States | Washington | Sandstone | Bellingham |