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Stone description: buff
| Wall Number | Country | State Sort ascending | Classification | Source |
|---|---|---|---|---|
| 10RA32 | United States | Kansas | Sandstone | Parsons |
| 13LB21 | United States | Iowa | Limestone | Independence |
| 13RA14 | United States | Iowa | Dolomite | Dixon Sta. |
| 11LA20 | United States | Iowa | Limestone | Bristow |
| 13RA15 | United States | Iowa | Dolomite | Ames Station Story Co. |
| 13RA19 | United States | Iowa | Limestone | Macedonia |
| 11RA19 | United States | Iowa | Limestone | Montour |
| 11RB15 | United States | Iowa | Dolomite | Lansing |
| 9RB12 | United States | Iowa | Limestone | Independence |
| 11RB20 | United States | Iowa | Limestone | Burlington |
| 9RB14 | United States | Iowa | Limestone | Tipton |
| 13RB15 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 12LA16 | United States | Iowa | Dolomite | Maquoketa |
| 12LA21 | United States | Iowa | Limestone | Tipton |
| 14LA15 | United States | Iowa | Dolomite | Waterloo |
| 14LB16 | United States | Iowa | Dolomite | Clemont |
| 14RA17 | United States | Iowa | Limestone | Waverly |
| 14RA18 | United States | Iowa | Dolomite | Delphi |
| 14RB22 | United States | Iowa | Limestone | Stennett |
| 12RB15 | United States | Iowa | Dolomite | Sabula |
| 14RB23 | United States | Iowa | Limestone | Montour |
| 9LA12 | United States | Iowa | Limestone | Earlham |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 13LA14 | United States | Iowa | Dolomite | La Porte |
| 13LA15 | United States | Iowa | Dolomite | St. Claire |
| 13LB13 | United States | Iowa | Limestone | Mason City |
| 29EE | United States | Indiana | Limestone | Bedford |
| 33WE | United States | Indiana | Limestone | Bedford |
| 12C | United States | Indiana | Limestone | Owens Co. |
| 8C | United States | Indiana | Limestone | Bloomington |
| S2-84 | United States | Indiana | Limestone | Bedford |
| 13C | United States | Indiana | Limestone | Owens Co. |
| S2-85 | United States | Indiana | Limestone | Bedford |
| 17EE | United States | Indiana | Limestone | Bedford |
| 13EE | United States | Indiana | Limestone | Bedford |
| S3-5 | United States | Indiana | Limestone | Bedford |
| 18EE | United States | Indiana | Limestone | Bedford |
| 20WE | United States | Indiana | Limestone | Bedford |
| 21WE | United States | Indiana | Limestone | Bedford |
| 22WE | United States | Indiana | Limestone | Bedford |
| 23EE | United States | Idaho | Sandstone | Boise |
| S2-132 | United States | Idaho | Sandstone | Boise |
| S2-8 | United States | Idaho | Sandstone | Boise |
| S2-168 | United States | Georgia | Marble | Marble Hill |
| 7LA6 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 9RA37 | Spain | Sandstone | Murcia | |
| 9RA38 | Spain | tuff | Alamazanon | |
| 7RA1 | Portugal | Limestone | Covoes, Coimbra | |
| 7RA5 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 4LB19 | Italy | Limestone | Leghorn | |
| 9RB42 | Portugal | Sandstone | St. Miguel, Coimbra | |
| 12LA26 | Italy | Travertine | Tivoli | |
| 8LB36 | Scotland | Sandstone | Thurso | |
| 14RA29 | Austria | Limestone | Mokritz | |
| 12RA25 | Italy | Travertine | Tivoli | |
| 14RA38 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 8RA7 | Austria | Marble | Untersberg | |
| 5RB45 | Hungary | Conglomerate | Hundscheim | |
| 10LA29 | Italy | Travertine | Tivoli | |
| 10LA40 | Mexico | Tuff | Zacatecas State | |
| 9LA6 | Austria | Marble | Castione | |
| 13LA24 | Austria | Marble | Untersberg | |
| 10RA28 | Italy | Travertine | Tivoli |