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Stone description: porous
| Wall Number | Country | State | Classification Sort ascending | Source |
|---|---|---|---|---|
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 9LA5 | United States | Missouri | Limestone | Barrett's Station |
| 13RA35 | Spain | Limestone | Murcia, Murcia | |
| 14La48 | United States | Texas | Limestone | Cedar Park |
| 2c | United States | Alabama | Limestone | Rockwood |
| 8RB16 | United States | Wisconsin | Limestone | Madison |
| 9RA9 | United States | Iowa | Limestone | Tracey Station, Marion Co. |
| 10C | United States | Indiana | Limestone | Bloomington |
| 13RA36 | Hungary | Limestone | Breitenbrunn | |
| 6C | United States | Indiana | Limestone | ? |
| 10RA22 | United States | Kansas | Limestone | Smoky Hill Reservation |
| 13LA36 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 13RA43 | United States | Kentucky | Limestone | Hopkinsville |
| 8C | United States | Indiana | Limestone | Bloomington |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 13RA47 | United States | Alabama | Limestone | Rockwood |
| 2WE | United States | Texas | Limestone | Cedar Park |
| 7LA4 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 10LA18 | United States | Iowa | Limestone | Marshalltown |
| 11LA33 | United States | Ohio | Limestone | Lumberton |
| 12LA35 | United States | Indiana | Limestone | Spencer |
| 14LB28 | United States | Tennessee | Limestone | Davidson Co. |
| 16C | United States | Alabama | Limestone | Rockwood |
| 3C | United States | Texas | Limestone | Cedar Park |
| 10LA25 | United States | Kansas | Limestone | Greeley |
| 11Ra25 | United States | Kansas | Limestone | Cottonwood |
| 14LB37 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 9RA3 | United States | Colorado | Limestone | Morrison |
| 10RB14 | United States | Indiana | Limestone | Stinesville |
| 11RA27 | United States | Kansas | Limestone | Cottonwood |
| 13LB29 | Italy | Limestone | Leghorn | |
| 7RA5 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 12LB22 | United States | Kansas | Limestone | Junction City |
| 13RB39 | United States | Illinois | Limestone | Columbia |
| 7RA7 | Hungary | Limestone | Mannersdorf | |
| 12LB35 | United States | Indiana | Limestone | Bedford |
| 13RB42 | United States | Indiana | Limestone | Bedford |
| 12RA1 | United States | Indiana | Limestone | Bedford |
| 1WE | United States | Texas | Limestone | Cedar Park |
| 4LB12 | United States | Indiana | Limestone | Salem |