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Stone description: porous
| Wall Number | Country | State Sort ascending | Classification | Source |
|---|---|---|---|---|
| 8LB37 | United States | Missouri | Sandstone | Rockville |
| 11LB29 | United States | Missouri | Sandstone | Jones Station Ralls Co. |
| 11LB30 | United States | Missouri | Sandstone | Butler |
| 9RA33 | United States | Minnesota | Sandstone | Jordan |
| 13RA7 | United States | Minnesota | Dolomite | Mankato |
| 12LA8 | United States | Minnesota | Dolomite | Frontenac |
| 11LA6 | United States | Minnesota | Dolomite | Kasota |
| 8LB34 | United States | Minnesota | Sandstone | Mendota |
| 7La32 | United States | Minnesota | Sandstone | Hinckley |
| 7LB43 | United States | Michigan | Sandstone | L'Anse |
| 7LB44 | United States | Michigan | Sandstone | Stony Point |
| 7LB45 | United States | Michigan | Sandstone | L'Anse |
| 8RA44 | United States | Michigan | Sandstone | L'Anse |
| 6LA46 | United States | Michigan | Sandstone | Portage Entry |
| 11LA2 | United States | Michigan | Dolomite | Raisinville |
| 7RA42 | United States | Michigan | Sandstone | Marquette |
| 8RB44 | United States | Michigan | Sandstone | Isle Royale |
| 7RB42 | United States | Michigan | Sandstone | Marquette |
| 8RA23 | United States | Massachusetts | Sandstone | E. Long Meadow |
| 6LA47 | United States | Louisiana | Sandstone | Unknown |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 11LB45 | United States | Kentucky | Sandstone | Whitney Co. |
| 6RA30 | United States | Kentucky | Sandstone | Whitney Co. |
| 8LA31 | United States | Kentucky | Sandstone | Johnson Co. |
| 6La30 | United States | Kentucky | Sandstone | Livingstone |
| 7RA28 | United States | Kentucky | Sandstone | Cloveport |
| 6RB29 | United States | Kentucky | Sandstone | Kirkmansville |
| 13RA43 | United States | Kentucky | Limestone | Hopkinsville |
| 8LB31 | United States | Kentucky | Sandstone | Cloveport |
| 5LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 6LB30 | United States | Kentucky | Sandstone | Cloveport |
| 12RA36 | United States | Kentucky | Limestone | Garrett |
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 10RA31 | United States | Kansas | Sandstone | Parsons |
| 10RA32 | United States | Kansas | Sandstone | Parsons |
| 11Ra25 | United States | Kansas | Limestone | Cottonwood |
| 11RA27 | United States | Kansas | Limestone | Cottonwood |
| 13RA23 | United States | Kansas | Limestone | Augusta |
| 13RA24 | United States | Kansas | Limestone | Douglass |
| 8LA39 | United States | Kansas | Sandstone | Oswego |
| 11RB9 | United States | Kansas | Dolomite | Marion Center |
| 10LA25 | United States | Kansas | Limestone | Greeley |
| 12LB22 | United States | Kansas | Limestone | Junction City |
| 10La9 | United States | Kansas | Dolomite | Marion Center |
| 11LB22 | United States | Kansas | Limestone | Cottonwood |
| 11LB22 | United States | Kansas | Limestone | Cottonwood |
| 11LB31 | United States | Kansas | Sandstone | Pawnee |
| 10RA22 | United States | Kansas | Limestone | Smoky Hill Reservation |
| 14LB16 | United States | Iowa | Dolomite | Clemont |
| 14RA14 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 13RA14 | United States | Iowa | Dolomite | Dixon Sta. |
| 11RB15 | United States | Iowa | Dolomite | Lansing |
| 14RA15 | United States | Iowa | Dolomite | Winterset |
| 13RA16 | United States | Iowa | Dolomite | Stone City |
| 13RA18 | United States | Iowa | Limestone | Vinton |
| 9RA44 | United States | Iowa | Sandstone | Davenport |
| 14RB17 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 14RB18 | United States | Iowa | Dolomite | Dixon |
| 11LA15 | United States | Iowa | Dolomite | Clinton |
| 9RA9 | United States | Iowa | Limestone | Tracey Station, Marion Co. |
| 11LA16 | United States | Iowa | Dolomite | Anamosa |
| 12LA16 | United States | Iowa | Dolomite | Maquoketa |
| 10LA18 | United States | Iowa | Limestone | Marshalltown |
| 13RB16 | United States | Iowa | Dolomite | Farley |
| 12RA16 | United States | Iowa | Dolomite | Farley |
| 11LB26 | United States | Iowa | Sandstone | Lewis |
| 14LA14 | United States | Iowa | Dolomite | Mt. Vernon |
| 9RA12 | United States | Iowa | Limestone | Iowa City |
| 14LA16 | United States | Iowa | Dolomite | Stone City |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 8C | United States | Indiana | Limestone | Bloomington |
| 10RB14 | United States | Indiana | Limestone | Stinesville |
| 4LB12 | United States | Indiana | Limestone | Salem |
| 9LA38 | United States | Indiana | Sandstone | Cannelton |
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 4RB12 | United States | Indiana | Limestone | Salem |
| 11C | United States | Indiana | Limestone | Lawrence Co. |
| 5C | United States | Indiana | Limestone | Lawrence Co. |
| 10C | United States | Indiana | Limestone | Bloomington |
| 12LA35 | United States | Indiana | Limestone | Spencer |
| 12LB35 | United States | Indiana | Limestone | Bedford |
| 13RB42 | United States | Indiana | Limestone | Bedford |
| 12RA1 | United States | Indiana | Limestone | Bedford |
| 9LB40 | United States | Indiana | Sandstone | French Lick Twp. |
| 9LB41 | United States | Indiana | Sandstone | Williamsport |
| 14C | United States | Indiana | Limestone | Bedford |
| 7C | United States | Indiana | Limestone | Bloomington |
| 9RB39 | United States | Indiana | Sandstone | Paoli |
| 12RA32 | United States | Indiana | Limestone | Salem |
| 9RB40 | United States | Indiana | Sandstone | Attica |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 6C | United States | Indiana | Limestone | ? |
| 9RA41 | United States | Illinois | Sandstone | Carbondale |
| 9RA42 | United States | Illinois | Sandstone | Xenia |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 9LA42 | United States | Illinois | Sandstone | Chester |
| 14RB4 | United States | Illinois | Dolomite | Kankakee |
| 13RB39 | United States | Illinois | Limestone | Columbia |