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Stone description: compact
| Wall Number | Country | State | Classification | Source Sort ascending |
|---|---|---|---|---|
| 12LB6 | United States | New York | Limestone | Schoharie |
| 9La17 | United States | Pennsylvania | Sandstone | Schickshinny Luzerne Co. |
| 6LB4 | United States | Pennsylvania | Sandstone | Schickshinny Luzerne Co. |
| 9Lb29 | United States | New York | Sandstone | Schenectady |
| 9RB29 | United States | New York | Sandstone | Sawkill |
| 14RA7 | United States | New York | Limestone | Saratoga |
| 14RB34 | Spain | Limestone | Saragossa Prov. | |
| 9RA14 | Spain | Limestone | Saragossa Prov. | |
| 8RA6 | United States | New York | Limestone | Sandy Hill |
| 13LB9 | United States | Ohio | Dolomite | Sandusky |
| 14RB13 | United States | Ohio | Dolomite | Sandusky |
| 13LA26 | United States | Texas | Limestone | San Saba |
| 14La4 | United States | Texas | Dolomite | San Saba |
| 11Lb13 | United States | Utah | Dolomite | San Pete Valley |
| 6LB31 | United States | California | Sandstone | San Jose |
| 6LA31 | United States | California | Sandstone | San Jose |
| 14RA3 | United States | Illinois | Dolomite | Saline |
| 12LB36 | United States | Indiana | Limestone | Salem |
| 13RB38 | United States | Illinois | Limestone | Sagetown |
| 14RA4 | United States | Illinois | Dolomite | Sag's Bridge |
| 12RB15 | United States | Iowa | Dolomite | Sabula |
| 11RB6 | United States | New York | Marble | S. Glenn Falls |
| 14LB8 | United States | New York | Limestone | S. Glenn Falls |
| 12LB37 | United States | Kentucky | Limestone | Russelville |
| 8La17 | United States | Kentucky | Limestone | Russelville |
| 8Lb40 | United States | West Virginia | Sandstone | Rowlesburgh |
| 14Lb27 | United States | Texas | Limestone | Round Rock |
| 11La25 | United States | Tennessee | Limestone | Rogersville |
| 8RA11 | United States | Illinois | Limestone | Rockport |
| 12LB23 | United States | Kansas | Limestone | Rock Twp. Butler Co. |
| 12LA33 | United States | North Carolina | Limestone | Rock Point |
| 11RA7 | United States | New York | Dolomite | Rochester |
| 11RA23 | United States | Nebraska | Limestone | Roca |
| 8LB6 | United States | Nebraska | Limestone | Roca |
| 8RB7 | United States | Nebraska | Limestone | Roca |
| 13LA4 | United States | Wisconsin | Dolomite | River Falls Pierce Co. |
| 13LA35 | Spain | Limestone | Ricla, Saragossa | |
| 10RB17 | Spain | Limestone | Ricla, Saragossa | |
| 10RA12 | United States | Kansas | Dolomite | Richland Twp. Butler Co. |
| 8LB17 | United States | Pennsylvania | Limestone | Richland Station Lebanon Co. |
| 13RA37 | United States | Pennsylvania | Limestone | Richland Station Lebanon Co. |
| 7LB35 | United States | Nevada | Andesite | Reno |
| 8LB29 | United States | New York | Sandstone | Reedsville |
| 11LA5 | United States | Minnesota | Limestone | Red Wing |
| 14RA8 | United States | Minnesota | Dolomite | Reading |
| 11LB7 | United States | Pennsylvania | Dolomite | Reading |
| 9RA40 | United States | Wyoming | Diorite | Raw Hide Buttes |
| 8La41 | United States | Mississippi | Sandstone | Rankin Co. |
| 13LA42 | United States | Illinois | Limestone | Quincy |
| 12RA4 | United States | Illinois | Limestone | Quincy |
| 6LA18 | United States | Pennsylvania | Sandstone | Queens Run Clinton Co. |
| 8LB42 | United States | New Jersey | Sandstone | Quarryville |
| 13RB15 | United States | Iowa | Dolomite | Quarry, Marshall Co. |
| 13LA21 | United States | Iowa | Limestone | Quarry, Marshall Co. |
| 8RA15 | United States | Indiana | Limestone | Putnamville |
| 9RB28 | United States | New York | Sandstone | Pultney |
| 6LB6 | United States | Pennsylvania | Sandstone | Prospect |
| 11RB38 | United States | New Jersey | Sandstone | Princetown |
| 13RA41 | United States | Kentucky | Limestone | Princeton |
| 13RA42 | United States | Kentucky | Limestone | Princeton |
| 14Lb46 | United States | Kentucky | Limestone | Princeton |
| 9RA35 | United States | Arizona | Sandstone | Prescott |
| 9LA33 | United States | Arizona | Sandstone | Prescott |
| 10RA10 | United States | New York | Limestone | Prescott |
| 12LB29 | United States | Wisconsin | Limestone | Prairie du Chien |
| 6RB11 | United States | Pennsylvania | Conglomerate | Pottsville |
| 13RB9 | United States | Pennsylvania | Dolomite | Potts Landing Berk's Co. |
| 9RB27 | United States | New York | Sandstone | Potsdam |
| 7La2 | Portugal | Limestone | Porto Barrao, Coimbra | |
| 4L6 | United States | Connecticut | Sandstone | Portland |
| 4R6 | United States | Connecticut | Sandstone | Portland |
| 8RA35 | United States | Connecticut | Sandstone | Portland |
| 7RA33 | United States | Connecticut | Sandstone | Portland |
| 21EE | United States | New York | Sandstone | Portageville |
| 9LA20 | United States | Pennsylvania | Sandstone | Pond Eddy |
| 13LA8 | United States | Pennsylvania | Dolomite | Plymouth |
| 11LA21 | United States | Missouri | Limestone | Pleasant Hill |
| 12LA22 | United States | Missouri | Limestone | Pleasant Hill |
| 6LB1 | United States | Pennsylvania | Sandstone | Plains |
| 8Lb46 | United States | Washington | Sandstone | Pittsburgh |
| 9LA4 | United States | Colorado | Limestone | Pitkin |
| 5LB31 | United States | Colorado | Quartzite | Pitkin |
| 13RB26 | United States | Colorado | Limestone | Pitkin |
| 13LA11 | United States | Ohio | Limestone | Piqua River |
| 14RB40 | United States | Ohio | Limestone | Piqua |
| 8RA31 | United States | Kentucky | Sandstone | Pineville |
| 14LB45 | United States | Kentucky | Limestone | Pineville |
| 14LB47 | United States | Kentucky | Limestone | Pineville |
| 13RA44 | United States | Kentucky | Limestone | Pilot Knob |
| 6RB12 | United States | Pennsylvania | Conglomerate | Pikesville |
| 9RA29 | United States | New York | Sandstone | Phoenicia |
| 8LB30 | United States | New York | Sandstone | Phoenicia |
| 7LB27 | United States | New York | Sandstone | Phoenicia |
| 5RA29 | United States | California | Basalt | Petaluma |
| 14RB21 | United States | Iowa | Limestone | Pella Station, Marion Co. |
| 10LB33 | United States | Texas | Sandstone | Pecos |
| 7La30 | United States | Texas | Sandstone | Pecos |
| 7Lb30 | United States | Texas | Sandstone | Pecos |
| 8La32 | United States | Texas | Sandstone | Pecos |
| 11RB25 | United States | Utah | Limestone | Payson |