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Stone description: fine grain
| Wall Number | Country | State | Classification | Source Sort descending |
|---|---|---|---|---|
| 12RB13 | United States | Ohio | Dolomite | Holmes Twp. Crawford C. |
| 7RA22 | United States | North Carolina | Quartzite | Hot Springs |
| 8RA37 | United States | Missouri | Sandstone | Howard Co. |
| 11RB5 | United States | New York | Limestone | Howe's Cave |
| 13RA5 | United States | New York | Limestone | Howe's Cave |
| 14RB7 | United States | New York | Limestone | Howe's Cave |
| 13RA38 | United States | Pennsylvania | Marble | Howellsville |
| 8LB28 | United States | New York | Sandstone | Hulberton |
| 13RA13 | United States | Iowa | Dolomite | Humbolt |
| 12RB16 | United States | Iowa | Dolomite | Humbolt |
| 7La12 | United States | Pennsylvania | Limestone | Hummelstown |
| 9RB26 | United States | New York | Sandstone | Huntersland |
| 6RB1 | United States | Pennsylvania | Quartzite | Huntingdon |
| 12RB32 | United States | Pennsylvania | Limestone | Huntingdon |
| 14LB39 | United States | Pennsylvania | Limestone | Hyndman |
| 5RA2 | United States | Ohio | Sandstone | Iberia |
| 8RB38 | United States | Maryland | Gneiss | Ilchester |
| 14LA47 | Portugal | Limestone | Ilhastro, Coimbra | |
| 9RB12 | United States | Iowa | Limestone | Independence |
| 13LB21 | United States | Iowa | Limestone | Independence |
| 13LA20 | United States | Iowa | Coral | Iowa City |
| 10LA20 | United States | Iowa | Limestone | Iowa Falls |
| 11LB20 | United States | Iowa | Limestone | Iowa Falls |
| 14LB26 | United States | Kansas | Limestone | Irving |
| 13La1 | United States | Vermont | Limestone | Isle La Motte |
| 10RA6 | United States | Vermont | Marble | Isle LaMotte |
| 14LB2 | United States | Vermont | Marble | Isle LaMotte |
| 12RB2 | United States | Vermont | Marble | Isle LaMotte |
| 3L16 | United States | Vermont | Marble | Isle LaMotte |
| 10RA16 | United States | Vermont | Marble | Isle LaMotte |
| 3R16 | United States | Vermont | Marble | Isle LaMotte |
| 9RB7 | United States | Vermont | Marble | Isle LaMotte |
| 10LA23 | Cuba | Marble | Isle of Pines | |
| 8RB44 | United States | Michigan | Sandstone | Isle Royale |
| 10LB32 | United States | New York | Sandstone | Ithaca |
| 13LB42 | United States | Illinois | Limestone | Iuka |
| 9Lb34 | United States | Oregon | Sandstone | Jacksonville |
| 11RB33 | United States | Oregon | Sandstone | Jacksonville |
| 6Lb19 | United States | Pennsylvania | Diabase | Jacksonwald |
| 6RA19 | United States | Pennsylvania | Quartzite | Jacksonwald |
| 8RA3 | Portugal | Limestone | Janianes, Coimbra | |
| 14LA46 | Portugal | Limestone | Janianes, Coimbra | |
| 7RB23 | United States | Maine | Gneiss | Jefferson |
| 11LA12 | United States | Missouri | Dolomite | Jefferson City |
| 7RB31 | United States | Colorado | Sandstone | Jefferson Co. |
| 10RB46 | United States | New Jersey | Diabase | Jersey City |
| 10LA42 | United States | New Jersey | Diabase | Jersey City |
| 6RA10 | United States | Pennsylvania | Sandstone | Johnstown |
| 11RB1 | United States | Illinois | Dolomite | Joilet |
| 14RA2 | United States | Illinois | Dolomite | Joilet |
| 12LA3 | United States | Illinois | Dolomite | Joilet |
| 14LA3 | United States | Illinois | Dolomite | Joilet |
| 13RB2 | United States | Illinois | Dolomite | Joilet |
| 12RA30 | United States | Illinois | Limestone | Joliet |
| 12LA31 | United States | Illinois | Limestone | Joliet |
| 11LB29 | United States | Missouri | Sandstone | Jones Station Ralls Co. |
| 9RA33 | United States | Minnesota | Sandstone | Jordan |
| 12LB22 | United States | Kansas | Limestone | Junction City |
| 14RB4 | United States | Illinois | Dolomite | Kankakee |
| 14LA25 | Austria | Marble | Karst | |
| 12RA9 | United States | Minnesota | Dolomite | Kasota |
| 12LB8 | United States | Minnesota | Dolomite | Kasota |
| 11LA6 | United States | Minnesota | Dolomite | Kasota |
| 12RA31 | United States | Maryland | Marble | Keedysville |
| 6RB44 | United States | New Hampshire | Granite | Keene |
| 13RA12 | United States | Ohio | Dolomite | Kelley's Isl. |
| 9La10 | United States | Iowa | Limestone | Keosauque Station |
| 14La10 | United States | Pennsylvania | Dolomite | Kerberburgh |
| 8LA9 | Canada | Limestone | Kingston | |
| 5RQ | United States | Ohio | Sandstone | Kipton |
| 7RQ | United States | Ohio | Sandstone | Kipton |
| 8RA38 | United States | Arizona | Tuff | Kirkland |
| 7LA36 | United States | Arizona | Tuff | Kirkland |
| 8RA27 | United States | Maine | Schist | Knightsville |
| 8LA14 | United States | Indiana | Limestone | Kokomo |
| 7LB45 | United States | Michigan | Sandstone | L'Anse |
| 13LA5 | United States | Wisconsin | Dolomite | La Crosse |
| 13LA14 | United States | Iowa | Dolomite | La Porte |
| 12LA17 | United States | Iowa | Dolomite | La Porte |
| 12RA11 | United States | Kentucky | Limestone | Lagrange |
| 5RB34 | United States | Minnesota | Quartz | Lake Co. |
| 6LB43 | United States | New Jersey | Diabase | Lambertville |
| 13Lb8 | United States | Pennsylvania | Marble | Lancaster |
| 11La17 | United States | Iowa | Dolomite | Lansing |
| 11RA14 | United States | Iowa | Dolomite | Lansing |
| 9Lb44 | United States | Wyoming | Sandstone | Laramie |
| 7RA44 | United States | New Mexico | Sandstone | Las Vegas |
| 8RA47 | United States | New Mexico | Sandstone | Las Vegas |
| 11LB44 | United States | New Mexico | Sandstone | Las Vegas |
| 8La47 | United States | New Mexico | Sandstone | Las Vegas |
| 5LB32 | United States | Colorado | Granite | Lawson |
| 12LB7 | United States | New York | Limestone | Le Roy |
| 14RB10 | United States | Pennsylvania | Dolomite | Leaman Place Lancaster Co. |
| 11LB10 | United States | Kansas | Limestone | Leavenworth |
| 7La15 | United States | Pennsylvania | Limestone | Lebanon |
| 7La16 | United States | Pennsylvania | Limestone | Lebanon |
| 14RB43 | United States | Kentucky | Limestone | Lebanon |
| 7RA15 | United States | Pennsylvania | Limestone | Lebanon |
| 13RB31 | United States | Massachusetts | Marble | Lee |
| 11RB31 | United States | Virginia | Diabase | Leesburg |