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Stone description: compact
| Wall Number | Country | State | Classification | Source Sort ascending |
|---|---|---|---|---|
| 6RA12 | United States | Pennsylvania | Sandstone | Lucesco |
| 12LB12 | United States | Kentucky | Dolomite | Louisville |
| 8LA6 | United States | New York | Limestone | Louisville |
| 5RB30 | United States | California | Tuff | Lordsburg |
| 11LB1 | United States | Indiana | Dolomite | Longwood |
| 8RB3 | Portugal | Limestone | Lombas, Leiria | |
| 14LA1 | United States | Indiana | Dolomite | Logansport |
| 13LB6 | United States | New York | Dolomite | Lockport |
| 13La46 | United States | Kentucky | Limestone | Livingstone |
| 7LA29 | United States | California | Sandstone | Livermore |
| 13LB43 | United States | Kentucky | Limestone | Litchfield |
| 13RB43 | United States | Kentucky | Limestone | Litchfield |
| 13LB44 | United States | Kentucky | Limestone | Lincoln Co. |
| 12La13 | United States | Kentucky | Dolomite | Lincoln Co. |
| 12RA12 | United States | Ohio | Dolomite | Lexington |
| 13LB2 | United States | Illinois | Dolomite | Lemont |
| 13LA2 | United States | Illinois | Dolomite | Lemont |
| 12LB3 | United States | Illinois | Dolomite | Lemont |
| 13RA2 | United States | Illinois | Dolomite | Lemont |
| 11RA3 | United States | Illinois | Dolomite | Lemont |
| 11LB25 | Italy | Sandstone | Leghorn | |
| 9RA32 | Italy | Sandstone | Leghorn | |
| 7RA18 | United States | Pennsylvania | Sandstone | Leboeuf |
| 12RB24 | United States | Tennessee | Limestone | Lebanon Pike |
| 14RB43 | United States | Kentucky | Limestone | Lebanon |
| 8RA18 | United States | Kentucky | Limestone | Lebanon |
| 7RA15 | United States | Pennsylvania | Limestone | Lebanon |
| 7La15 | United States | Pennsylvania | Limestone | Lebanon |
| 7La16 | United States | Pennsylvania | Limestone | Lebanon |
| 11LB10 | United States | Kansas | Limestone | Leavenworth |
| 14RB14 | United States | Iowa | Limestone | Le-Grand |
| 12LB7 | United States | New York | Limestone | Le Roy |
| 11LB44 | United States | New Mexico | Sandstone | Las Vegas |
| 8RA47 | United States | New Mexico | Sandstone | Las Vegas |
| 14LB43 | United States | Nebraska | Limestone | LaPlatte |
| 11La17 | United States | Iowa | Dolomite | Lansing |
| 9RA13 | United States | Kansas | Limestone | Lane |
| 13Lb8 | United States | Pennsylvania | Marble | Lancaster |
| 5RB34 | United States | Minnesota | Quartz | Lake Co. |
| 12RA11 | United States | Kentucky | Limestone | Lagrange |
| 13LA14 | United States | Iowa | Dolomite | La Porte |
| 12LA17 | United States | Iowa | Dolomite | La Porte |
| 8LA14 | United States | Indiana | Limestone | Kokomo |
| 12RA5 | United States | Tennessee | Limestone | Knoxville |
| 14LB20 | United States | Iowa | Limestone | Knoxville |
| 4Lb11 | United States | Tennessee | Limestone | Knoxville |
| 4RB11 | United States | Tennessee | Limestone | Knoxville |
| 8RA27 | United States | Maine | Schist | Knightsville |
| 8LA9 | Canada | Limestone | Kingston | |
| 13RB5 | United States | New York | Limestone | Kingston |
| 8LA12 | United States | Illinois | Limestone | Kinderhook |
| 14La10 | United States | Pennsylvania | Dolomite | Kerberburgh |
| 9La10 | United States | Iowa | Limestone | Keosauque Station |
| 14LA17 | United States | Iowa | Dolomite | Keokuk |
| 13RA12 | United States | Ohio | Dolomite | Kelley's Isl. |
| 12RA9 | United States | Minnesota | Dolomite | Kasota |
| 12LB8 | United States | Minnesota | Dolomite | Kasota |
| 12LA14 | United States | Missouri | Limestone | Kansas City |
| 8RA12 | United States | Illinois | Limestone | Jonesborough |
| 12LA32 | United States | Illinois | Limestone | Jonesborough |
| 12RA30 | United States | Illinois | Limestone | Joliet |
| 12LA31 | United States | Illinois | Limestone | Joliet |
| 14LA3 | United States | Illinois | Dolomite | Joilet |
| 13RB2 | United States | Illinois | Dolomite | Joilet |
| 14RA2 | United States | Illinois | Dolomite | Joilet |
| 12LA3 | United States | Illinois | Dolomite | Joilet |
| 11RB1 | United States | Illinois | Dolomite | Joilet |
| 6RA10 | United States | Pennsylvania | Sandstone | Johnstown |
| 7RB31 | United States | Colorado | Sandstone | Jefferson Co. |
| 11LA12 | United States | Missouri | Dolomite | Jefferson City |
| 14LA46 | Portugal | Limestone | Janianes, Coimbra | |
| 8RA3 | Portugal | Limestone | Janianes, Coimbra | |
| 6RA19 | United States | Pennsylvania | Quartzite | Jacksonwald |
| 13LB42 | United States | Illinois | Limestone | Iuka |
| 10LB32 | United States | New York | Sandstone | Ithaca |
| 14LB26 | United States | Kansas | Limestone | Irving |
| 10LA20 | United States | Iowa | Limestone | Iowa Falls |
| 11LB20 | United States | Iowa | Limestone | Iowa Falls |
| 10RB12 | United States | Iowa | Limestone | Iowa City |
| 13LA20 | United States | Iowa | Coral | Iowa City |
| 12LA20 | United States | Iowa | Limestone | Iowa City |
| 12RB7 | United States | New York | Limestone | Indian Res. Onondaga Co. |
| 13LB21 | United States | Iowa | Limestone | Independence |
| 9RB12 | United States | Iowa | Limestone | Independence |
| 14LA47 | Portugal | Limestone | Ilhastro, Coimbra | |
| 14LB39 | United States | Pennsylvania | Limestone | Hyndman |
| 12RB32 | United States | Pennsylvania | Limestone | Huntingdon |
| 9RB26 | United States | New York | Sandstone | Huntersland |
| 7La12 | United States | Pennsylvania | Limestone | Hummelstown |
| 13RA13 | United States | Iowa | Dolomite | Humbolt |
| 12RB16 | United States | Iowa | Dolomite | Humbolt |
| 13RA5 | United States | New York | Limestone | Howe's Cave |
| 14RB7 | United States | New York | Limestone | Howe's Cave |
| 11RB5 | United States | New York | Limestone | Howe's Cave |
| 7RA22 | United States | North Carolina | Quartzite | Hot Springs |
| 12RB13 | United States | Ohio | Dolomite | Holmes Twp. Crawford C. |
| 5RA37 | Mexico | Andesite | Hildalgo State | |
| 6LA29 | United States | New York | Sandstone | High Woods |
| 11RB14 | United States | Missouri | Dolomite | Hermann |
| 8LB15 | United States | Wisconsin | Limestone | Hayton |