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Stone description: light gray
| Wall Number | Country Sort ascending | State | Classification | Source |
|---|---|---|---|---|
| 13RA25 | Cuba | Marble | Isle of Pines | |
| 11RB28 | United States | Virginia | Granite | Fredericksburg |
| 6LB42 | United States | New Jersey | Sandstone | Stockton |
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 10RA35 | United States | New Hampshire | Granite | Roxbury |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 2L9 | United States | Vermont | Marble | Florence |
| 7RB43 | United States | Wisconsin | Quartzite | Stevens Point |
| 12LA1 | United States | Indiana | Dolomite | Greensburgh |
| 14LA5 | United States | Wisconsin | Dolomite | Eden |
| 6LB45 | United States | Vermont | Granite | Brattleboro |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 10RA37 | United States | New Hampshire | Granite | Mason |
| 13LB10 | United States | Ohio | Dolomite | Springfield |
| 2R10 | United States | Vermont | Marble | Florence |
| 7RB45 | United States | New Mexico | Tuff | Santa Fe |
| 12LA11 | United States | Ohio | Dolomite | Pt. Marblehead |
| 14LA6 | United States | Wisconsin | Dolomite | Taycheedah Twp. Fon du Lac Co. |
| 6RA10 | United States | Pennsylvania | Sandstone | Johnstown |
| 9LA5 | United States | Missouri | Limestone | Barrett's Station |
| 10RA40 | United States | New Hampshire | Granite | Milford |
| 13LB14 | United States | Iowa | Dolomite | Delphi |
| 2R12 | United States | Vermont | Marble | Florence |
| 8L48 | United States | Ohio | Sandstone | Berea |
| 12LA15 | United States | Iowa | Dolomite | Marshalltown |
| 14LB1 | United States | Indiana | Dolomite | Montpelier |
| 6RA11 | United States | Pennsylvania | Sandstone | Layton Station Fayette Co. |
| 9LA9 | United States | Iowa | Limestone | Burlington |
| 10RA9 | United States | Wisconsin | Dolomite | Byron |
| 13LB2 | United States | Illinois | Dolomite | Lemont |
| 2R2 | United States | Vermont | Marble | Florence |
| 8LA12 | United States | Illinois | Limestone | Kinderhook |
| 12LA3 | United States | Illinois | Dolomite | Joilet |
| 14LB13 | United States | Ohio | Limestone | Dayton |
| 6RA19 | United States | Pennsylvania | Quartzite | Jacksonwald |
| 9LB10 | United States | Iowa | Limestone | Bristow |
| 10RB13 | United States | Iowa | Limestone | Blansett |
| 13LB44 | United States | Kentucky | Limestone | Lincoln Co. |
| 2R3 | United States | Vermont | Marble | Florence |
| 8LA13 | United States | Indiana | Limestone | Fort Ritner |
| 12LA31 | United States | Illinois | Limestone | Joliet |
| 14LB15 | United States | Iowa | Dolomite | Manchester |
| 6RA20 | United States | Ohio | Sandstone | Lancaster |
| 9LB13 | United States | Iowa | Limestone | Burlington |
| 10RB14 | United States | Indiana | Limestone | Stinesville |
| 13LB6 | United States | New York | Dolomite | Lockport |
| 2R9 | United States | Vermont | Marble | Florence |
| 8LA15 | United States | Indiana | Limestone | Greenscastle |
| 12LA32 | United States | Illinois | Limestone | Jonesborough |
| 14LB43 | United States | Nebraska | Limestone | LaPlatte |
| 6RA4 | United States | Pennsylvania | Sandstone | Connellsville |
| 9LB23 | United States | Ohio | Sandstone | Marietta |
| 10RB25 | United States | Maine | Granite | Hallowell |
| 13RA2 | United States | Illinois | Dolomite | Lemont |
| 4L9 | United States | Ohio | Sandstone | Berea |
| 8La17 | United States | Kentucky | Limestone | Russelville |
| 12LA35 | United States | Indiana | Limestone | Spencer |
| 14Lb46 | United States | Kentucky | Limestone | Princeton |
| 6RA44 | United States | New Hampshire | Granite | Milford |
| 9LB24 | United States | Massachusetts | Gneiss | Charlton |
| 10RB32 | United States | Colorado | Sandstone | Fort Collins |
| 13RA20 | United States | Iowa | Limestone | Sigourney Station, Keokuk Co. |
| 4LB12 | United States | Indiana | Limestone | Salem |
| 12La36 | United States | Kentucky | Limestone | Bloomfield |
| 14RA10 | United States | Pennsylvania | Dolomite | Mill Lane Chester Co. |
| 6RB1 | United States | Pennsylvania | Quartzite | Huntingdon |
| 10RB45 | United States | New Hampshire | Granite | Mason |
| 13RA24 | United States | Kansas | Limestone | Douglass |
| 4R9 | United States | Ohio | Sandstone | Berea |
| 8LA30 | United States | New York | Sandstone | Lockport |
| 12LA37 | United States | Alabama | Limestone | Trinity |
| 14RA15 | United States | Iowa | Dolomite | Winterset |
| 6RB18 | United States | Pennsylvania | Gneiss | Chester |
| 9RA39 | United States | Wyoming | Sandstone | Rawlins |
| 10RB7 | United States | Missouri | Limestone | Hannibal |
| 4RB12 | United States | Indiana | Limestone | Salem |
| 8LA36 | United States | Missouri | Sandstone | Clinton |
| 12LB35 | United States | Indiana | Limestone | Bedford |
| 14RA16 | United States | Iowa | Dolomite | Franklin |
| 6RB20 | United States | Ohio | Sandstone | Amherst |
| 9RA42 | United States | Illinois | Sandstone | Xenia |
| 11B | United States | New Hampshire | Granite | Concord |
| 13RA41 | United States | Kentucky | Limestone | Princeton |
| 5B | United States | Maine | Granite | North Jay |
| 8La46 | United States | Washington | Sandstone | Wilkeson |
| 12RA1 | United States | Indiana | Limestone | Bedford |
| 14RA2 | United States | Illinois | Dolomite | Joilet |
| 6RB24 | United States | North Carolina | Granite | Salisbury |
| 9RA9 | United States | Iowa | Limestone | Tracey Station, Marion Co. |
| 11La1 | United States | Indiana | Dolomite | St. Paul |
| 13RA43 | United States | Kentucky | Limestone | Hopkinsville |
| 5LA18 | United States | Ohio | Sandstone | Plymouth |
| 8Lb46 | United States | Washington | Sandstone | Pittsburgh |
| 12RA11 | United States | Kentucky | Limestone | Lagrange |
| 14RA28 | United States | Tennessee | Limestone | Carter's Station Creek |
| 6RB28 | United States | New York | Sandstone | Canisteo |
| 9RB13 | United States | Iowa | Limestone | Conrad |
| 11LA12 | United States | Missouri | Dolomite | Jefferson City |
| 13RA44 | United States | Kentucky | Limestone | Pilot Knob |
| 5LA9 | United States | Ohio | Sandstone | Piketon |