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Stone description: light gray
| Wall Number | Country Sort descending | State | Classification | Source |
|---|---|---|---|---|
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 11RA20 | United States | Texas | Marble | San Saba |
| 13RB4 | United States | Wisconsin | Dolomite | Byron |
| 5RB44 | United States | New Hampshire | Granite | Marlborough |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 10La21 | United States | Missouri | Limestone | Springfield |
| 12RB40 | United States | Alabama | Limestone | Turks Cave |
| 1R4 | United States | Connecticut | Granite | Reynold's Bridge |
| 7LA31 | United States | Colorado | Sandstone | Fort Collins |
| 11RA21 | United States | Missouri | Limestone | St. Louis |
| 13RB43 | United States | Kentucky | Limestone | Litchfield |
| 6LA20 | United States | Ohio | Sandstone | Newark |
| 8RB19 | United States | Pennsylvania | Sandstone | Corry |
| 10LA49 | United States | Michigan | Quartzite | Vulcan |
| 13LA11 | United States | Ohio | Limestone | Piqua River |
| 1R5 | United States | Connecticut | Granite | Thomaston |
| 7LB35 | United States | Nevada | Andesite | Reno |
| 11RA23 | United States | Nebraska | Limestone | Roca |
| 13RB44 | United States | Kentucky | Limestone | Frankfort |
| 6LA26 | United States | Maine | Granite | Lincolnville |
| 8RB7 | United States | Nebraska | Limestone | Roca |
| 10LB34 | United States | Connecticut | Gneiss | Roxbury |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 2B | United States | North Carolina | Granite | Mt. Airy |
| 7LB37 | United States | Massachusetts | Gneiss | Westford |
| 11RA27 | United States | Kansas | Limestone | Cottonwood |
| 13rb46 | United States | Alabama | Limestone | Leighton |
| 6LA3 | United States | Pennsylvania | Sandstone | Wampum |
| 8rb9 | United States | Ohio | Limestone | Xenia |
| 13LA16 | United States | Iowa | Limestone | Fort Dodge |
| 2c | United States | Alabama | Limestone | Rockwood |
| 7RA31 | United States | Colorado | Sandstone | Coal Creek |
| 11RA29 | United States | Tennessee | Limestone | Sherwood Station |
| 14LA13 | United States | Ohio | Dolomite | Urbana |
| 6LA33 | United States | Colorado | Sandstone | Trinidad |
| 9La10 | United States | Iowa | Limestone | Keosauque Station |
| 10LB44 | United States | New Hampshire | Granite | Manchester |
| 13LA2 | United States | Illinois | Dolomite | Lemont |
| 2L10 | United States | Vermont | Marble | Florence |
| 7RA44 | United States | New Mexico | Sandstone | Las Vegas |
| 11RA3 | United States | Illinois | Dolomite | Lemont |
| 14LA2 | United States | Illinois | Dolomite | Aurora |
| 6LA44 | United States | New Hampshire | Granite | Troy |
| 9LA13 | United States | Kansas | Limestone | Manhattan |
| 10Lb46 | United States | Wisconsin | Sandstone | Mauston |
| 13LA20 | United States | Iowa | Coral | Iowa City |
| 2L12 | United States | Vermont | Marble | Florence |
| 7ra8 | United States | Alabama | Limestone | Dickson |
| 13RA25 | Cuba | Marble | Isle of Pines |