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: light drab
| Wall Number | Country | State | Classification Sort descending | Source |
|---|---|---|---|---|
| 12RA21 | United States | Iowa | Limestone | Marshalltown |
| 8LB7 | United States | Nebraska | Limestone | Syracuse |
| 8RA3 | Portugal | Limestone | Janianes, Coimbra | |
| 9RA14 | Spain | Limestone | Saragossa Prov. | |
| 13RA42 | United States | Kentucky | Limestone | Princeton |
| 13RA45 | United States | Kentucky | Limestone | Anchorage |
| 14LA47 | Portugal | Limestone | Ilhastro, Coimbra | |
| 14RA24 | United States | Iowa | Limestone | Bedford |
| 8LB15 | United States | Wisconsin | Limestone | Hayton |
| 10LA22 | United States | Arizona | Marble | Nr. Phoenix |
| 14RA39 | Portugal | Marble | Freduesias of S Miguel Coimbra | |
| 10RA21 | United States | Arizona | Marble | Nr. Phoenix |
| 14RA47 | Portugal | Marble | Penella, Beira Prov. | |
| 7LB13 | Austria | Marble | Castione | |
| 12RA6 | United States | Wisconsin | Dolomite | Milwaukee |
| 12RB9 | United States | Minnesota | Dolomite | Winona |
| 13LA8 | United States | Pennsylvania | Dolomite | Plymouth |
| 13LB4 | United States | Wisconsin | Dolomite | Racine |
| 14LA1 | United States | Indiana | Dolomite | Logansport |
| 10RA14 | United States | Ohio | Dolomite | Van Wert |
| 11LB5 | United States | Minnesota | Dolomite | Stillwater |
| 14RA8 | United States | Minnesota | Dolomite | Reading |
| 11RB13 | United States | Missouri | Dolomite | Dutzrow |
| 14RB5 | United States | Wisconsin | Dolomite | Eden |
| 12La13 | United States | Kentucky | Dolomite | Lincoln Co. |
| 12LB3 | United States | Illinois | Dolomite | Lemont |