Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Stone description: porous
| Wall Number | Country | State | Classification | Source Sort descending |
|---|---|---|---|---|
| 11RA27 | United States | Kansas | Limestone | Cottonwood |
| 11LB22 | United States | Kansas | Limestone | Cottonwood |
| 11LB22 | United States | Kansas | Limestone | Cottonwood |
| 7La33 | United States | Connecticut | Sandstone | Cromwell |
| 5RB6 | United States | Ohio | Sandstone | Cumberland |
| 9LA19 | United States | Pennsylvania | Sandstone | Curwensville |
| 9RB34 | United States | Alabama | Sandstone | DaKalb County |
| 11RB34 | United States | Oregon | Sandstone | Dallas |
| 9RA44 | United States | Iowa | Sandstone | Davenport |
| 14LB28 | United States | Tennessee | Limestone | Davidson Co. |
| 14RB18 | United States | Iowa | Dolomite | Dixon |
| 13RA14 | United States | Iowa | Dolomite | Dixon Sta. |
| 9RA45 | Canada | Sandstone | Dorchester, New Brunswick | |
| 13RA24 | United States | Kansas | Limestone | Douglass |
| 11RA38 | United States | Tennessee | Sandstone | Ducktown |
| 8RA24 | United States | North Carolina | Sandstone | Durham |
| 5RA18 | United States | Ohio | Sandstone | E. Cleveland |
| 8LA35 | United States | Connecticut | Sandstone | E. Haven |
| 8RA23 | United States | Massachusetts | Sandstone | E. Long Meadow |
| 11LB12 | United States | Ohio | Dolomite | Eaton |
| 8RA25 | United States | North Carolina | Sandstone | Egypt |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 7RA20 | United States | Ohio | Sandstone | Elyria |
| 8RA20 | United States | Ohio | Sandstone | Elyria |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 5RA12 | United States | Ohio | Sandstone | Euclid |
| 12LA10 | United States | Ohio | Dolomite | Euphemia |
| 10RQ | United States | Connecticut | Sandstone | Fair Haven |
| 14RQ | United States | Connecticut | Sandstone | Fair Haven |
| 13RB16 | United States | Iowa | Dolomite | Farley |
| 12RA16 | United States | Iowa | Dolomite | Farley |
| 6RA6 | United States | Pennsylvania | Sandstone | Farrandsville |
| 8RB18 | United States | Pennsylvania | Sandstone | Fayette Station Fayette Co. |
| 9Lb37 | United States | Oregon | Sandstone | Forest Grove |
| 10RB32 | United States | Colorado | Sandstone | Fort Collins |
| 8RB33 | United States | Colorado | Sandstone | Fort Collins |
| 7LA31 | United States | Colorado | Sandstone | Fort Collins |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 6RB2 | United States | Pennsylvania | Sandstone | Franklin |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 10LB38 | United States | Colorado | Sandstone | Fremont Co.- Ark. River |
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 9LB40 | United States | Indiana | Sandstone | French Lick Twp. |
| 6RB13 | United States | Pennsylvania | Conglomerate | Friedensburg |
| 12LA8 | United States | Minnesota | Dolomite | Frontenac |
| 6RA14 | United States | Pennsylvania | Sandstone | Fuller |
| 6RA9 | United States | Pennsylvania | Sandstone | Garland |
| 12RA36 | United States | Kentucky | Limestone | Garrett |
| 9RA46 | Canada | Sandstone | Georgetown, Ontario | |
| 11EE | United States | Ohio | Sandstone | Glenmont |
| 15WE | United States | Ohio | Sandstone | Glenmont |
| 24EE | United States | Ohio | Sandstone | Glenmont |
| 9EE | United States | Ohio | Sandstone | Glenmont |
| S1-35 | United States | Ohio | Sandstone | Glenmont |
| 2EE | United States | Ohio | Sandstone | Glenmont |
| 6RA16 | United States | Pennsylvania | Sandstone | Goldsboro |
| 10Lb37 | United States | West Virginia | Sandstone | Grafton |
| 5LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 10LA25 | United States | Kansas | Limestone | Greeley |
| 14LB11 | United States | Ohio | Dolomite | Greenfield |
| 6RB5 | United States | Pennsylvania | Sandstone | Greenville |
| 9RB20 | United States | Ohio | Sandstone | Harmer |
| 6RA31 | United States | California | Sandstone | Haywards |
| 7La32 | United States | Minnesota | Sandstone | Hinckley |
| 6RA8 | United States | Pennsylvania | Sandstone | Homewood |
| 9Lb17 | United States | Pennsylvania | Sandstone | Homewood |
| 13RA43 | United States | Kentucky | Limestone | Hopkinsville |
| 11RB26 | United States | South Dakota | Sandstone | Hot Springs |
| 7WE | United States | South Dakota | Sandstone | Hot Springs |
| 8RA37 | United States | Missouri | Sandstone | Howard Co. |
| 5RA6 | United States | Ohio | Sandstone | Howard Station Knox Co. |
| 8LB28 | United States | New York | Sandstone | Hulberton |
| 6RA3 | United States | Pennsylvania | Sandstone | Hummelstown |
| 5RA2 | United States | Ohio | Sandstone | Iberia |
| 7RB20 | United States | Ohio | Sandstone | Independence |
| 5RB8 | United States | Ohio | Sandstone | Independence |
| 9RA12 | United States | Iowa | Limestone | Iowa City |
| 13LA13 | United States | Iowa | Dolomite | Iowa Falls |
| 8RB44 | United States | Michigan | Sandstone | Isle Royale |
| 11RB33 | United States | Oregon | Sandstone | Jacksonville |
| 9Lb34 | United States | Oregon | Sandstone | Jacksonville |
| 8LA31 | United States | Kentucky | Sandstone | Johnson Co. |
| 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 |
| 11LA6 | United States | Minnesota | Dolomite | Kasota |
| 7LA10 | United States | Florida | Limestone | Key West |
| 6RB3 | United States | Pennsylvania | Sandstone | Kiasola Station Beaver Co. |
| 9La34 | United States | West Virginia | Sandstone | Kingwood |
| 9RA36 | United States | West Virginia | Sandstone | Kingwood |
| 5RQ | United States | Ohio | Sandstone | Kipton |
| 7RQ | United States | Ohio | Sandstone | Kipton |
| 6RB29 | United States | Kentucky | Sandstone | Kirkmansville |
| 14RA37 | Hungary | Limestone | Kroisbach | |
| 7LB43 | United States | Michigan | Sandstone | L'Anse |
| 7LB45 | United States | Michigan | Sandstone | L'Anse |
| 8RA44 | United States | Michigan | Sandstone | L'Anse |