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Stone description: medium grain
| Wall Number | Country | State | Classification Sort ascending | Source |
|---|---|---|---|---|
| 6RA31 | United States | California | Sandstone | Haywards |
| 7La33 | United States | Connecticut | Sandstone | Cromwell |
| 8RA40 | United States | New Jersey | Sandstone | Belleville |
| 5La17 | United States | Ohio | Sandstone | Wooster |
| 6LA5 | United States | Pennsylvania | Sandstone | Scranton |
| 8LB34 | United States | Minnesota | Sandstone | Mendota |
| 8RA45 | United States | Washington | Sandstone | Bellingham |
| 9RB20 | United States | Ohio | Sandstone | Harmer |
| 7LA39 | United States | New Jersey | Sandstone | Patterson |
| 8LB36 | Scotland | Sandstone | Thurso | |
| 9LB23 | United States | Ohio | Sandstone | Marietta |
| 9RB27 | United States | New York | Sandstone | Potsdam |
| 6LB31 | United States | California | Sandstone | San Jose |
| 7LA40 | United States | New Jersey | Sandstone | Orange Mt. |
| 8LB39 | United States | West Virginia | Sandstone | Wheeling |
| 11La40 | United States | Tennessee | Sandstone | Sewanee |
| 5RB1 | United States | Ohio | Sandstone | Amherst |
| 7LA44 | United States | Michigan | Sandstone | Marquette |
| 7RA39 | United States | New Jersey | Sandstone | Belleville |
| 9RB32 | United States | Missouri | Sandstone | Meadville |
| 11RB26 | United States | South Dakota | Sandstone | Hot Springs |
| 1RQ | United States | Ohio | Sandstone | Amherst |
| 6LB42 | United States | New Jersey | Sandstone | Stockton |
| 8LA31 | United States | Kentucky | Sandstone | Johnson Co. |
| 8Lb46 | United States | Washington | Sandstone | Pittsburgh |
| 8RB20 | United States | Ohio | Sandstone | Middleburg Twp. Cuyahoga Co. |
| 9LB41 | United States | Indiana | Sandstone | Williamsport |
| 13RQ | United States | Ohio | Sandstone | Glenmont |
| 8LA37 | United States | Missouri | Sandstone | Warrensburg |
| 8RB35 | United States | Connecticut | Sandstone | Portland |
| 9LB43 | United States | Washington | Sandstone | Tenino |
| 10Lb36 | United States | Kansas | Sandstone | Pawnee |
| 10RB31 | United States | Texas | Sandstone | Mormon Mills |
| 11RB45 | United States | New Mexico | Sandstone | Las Vegas |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 6LB7 | United States | Pennsylvania | Sandstone | Yardleyville |
| 6RB29 | United States | Kentucky | Sandstone | Kirkmansville |
| 7Lb26 | United States | New York | Sandstone | Woodstock |
| 8LA39 | United States | Kansas | Sandstone | Oswego |
| 8RB40 | United States | New Jersey | Sandstone | Belleville |
| 11RB46 | Canada | Sandstone | Cliffton, New Brunswick | |
| 4R7 | Australia | Sandstone | New South Wales | |
| 6RA11 | United States | Pennsylvania | Sandstone | Layton Station Fayette Co. |
| 8RB45 | United States | Wisconsin | Sandstone | Packwaukee |
| 11RQ | United States | Ohio | Sandstone | Glenmont |
| 3RQ | United States | Ohio | Sandstone | Amherst |
| 5La8 | United States | Ohio | Sandstone | Youngstown |
| 5RB5 | United States | Ohio | Sandstone | Brownhelm |
| 6RA12 | United States | Pennsylvania | Sandstone | Lucesco |
| 8LA45 | United States | Washington | Sandstone | Olymphia |
| 12C | United States | Indiana | Limestone | Owens Co. |
| 12RB24 | United States | Tennessee | Limestone | Lebanon Pike |
| 14R49 | United States | Missouri | Limestone | Phenix |
| 2L17 | United States | Missouri | Limestone | Phenix |
| 4C | United States | Kansas | Limestone | Silverdale |
| 7C | United States | Indiana | Limestone | Bloomington |
| 8RA13 | United States | Indiana | Limestone | Bedford |
| 9RA13 | United States | Kansas | Limestone | Lane |
| 10RA10 | United States | New York | Limestone | Prescott |
| 11C | United States | Indiana | Limestone | Lawrence Co. |
| 14RB44 | United States | Kentucky | Limestone | Greensburg |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 12LA14 | United States | Missouri | Limestone | Kansas City |
| 13LB45 | United States | Kentucky | Limestone | Green Co. |
| 13RB24 | United States | Nebraska | Limestone | Glen Rock |
| 14RB45 | United States | Kentucky | Limestone | Frankfort |
| 8LA6 | United States | New York | Limestone | Louisville |
| 10LA18 | United States | Iowa | Limestone | Marshalltown |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 14RA21 | United States | Iowa | Limestone | Washington |
| 14RB48 | United States | Missouri | Limestone | Carthage |
| 4RB11 | United States | Tennessee | Limestone | Knoxville |
| 6C | United States | Indiana | Limestone | ? |
| 7La13 | United States | Pennsylvania | Limestone | East Conshohocken |
| 10La21 | United States | Missouri | Limestone | Springfield |
| 12RB36 | United States | Indiana | Limestone | Bedford |
| 14RA22 | United States | Iowa | Limestone | Winterset |
| 4RB12 | United States | Indiana | Limestone | Salem |
| 7RA14 | United States | Pennsylvania | Limestone | Connellsville |
| 9LA9 | United States | Iowa | Limestone | Burlington |
| 9RB11 | United States | Iowa | Limestone | Givin |
| 11RA6 | United States | New York | Limestone | Buffalo |
| 12LA22 | United States | Missouri | Limestone | Pleasant Hill |
| 12RB38 | United States | Kentucky | Limestone | Taylorsville |
| 13RA21 | United States | Iowa | Limestone | Bentonsport |
| 13RB35 | United States | New York | Limestone | Williamsville |
| 14RA24 | United States | Iowa | Limestone | Bedford |
| 7LA3 | Hungary | Limestone | Oszlopp | |
| 9LB11 | United States | Iowa | Limestone | Durham Sta. Marion Co. |
| 9RB13 | United States | Iowa | Limestone | Conrad |
| 12LA32 | United States | Illinois | Limestone | Jonesborough |
| 12RB7 | United States | New York | Limestone | Indian Res. Onondaga Co. |
| 13RA24 | United States | Kansas | Limestone | Douglass |
| 13RB40 | United States | Illinois | Limestone | Chester |
| 14LB20 | United States | Iowa | Limestone | Knoxville |
| 14RA27 | United States | Tennessee | Limestone | Nashville |
| 5C | United States | Indiana | Limestone | Lawrence Co. |
| 8C | United States | Indiana | Limestone | Bloomington |
| 9LB13 | United States | Iowa | Limestone | Burlington |
| 10LA7 | United States | New York | Limestone | Onondaga |