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: fine grain
| Wall Number | Country | State Sort descending | Classification | Source |
|---|---|---|---|---|
| 6LB15 | United States | Pennsylvania | Argillite (Slate) | Slatington |
| 6LB16 | United States | Pennsylvania | Diabase | Gettysburg |
| 6RB6 | United States | Pennsylvania | Sandstone | Center Bridge |
| 6LB18 | United States | Pennsylvania | Gneiss | Philadelphia |
| 6RB7 | United States | Pennsylvania | Sandstone | Cannonsburgh |
| 6Lb19 | United States | Pennsylvania | Diabase | Jacksonwald |
| 6RB8 | United States | Pennsylvania | Sandstone | Black Walnut |
| 7La12 | United States | Pennsylvania | Limestone | Hummelstown |
| 14LA9 | United States | Pennsylvania | Limestone | Spruce Creek Huntingdon Co. |
| 6RA4 | United States | Pennsylvania | Sandstone | Connellsville |
| 9Lb19 | United States | Pennsylvania | Argillite (Slate) | Chapman's Station |
| 7La14 | United States | Pennsylvania | Limestone | Wernersville |
| 13RA37 | United States | Pennsylvania | Limestone | Richland Station Lebanon Co. |
| 7La15 | United States | Pennsylvania | Limestone | Lebanon |
| 7RB18 | United States | Pennsylvania | Granite | Siesholtzville |
| 13RA38 | United States | Pennsylvania | Marble | Howellsville |
| 14LB10 | United States | Pennsylvania | Marble | York |
| 6La16 | United States | Pennsylvania | Sandstone | Titusville |
| 13RB9 | United States | Pennsylvania | Dolomite | Potts Landing Berk's Co. |
| 7La16 | United States | Pennsylvania | Limestone | Lebanon |
| 13RA39 | United States | Pennsylvania | Marble | Columbia |
| 6La17 | United States | Pennsylvania | Sandstone | Skinner's Eddy |
| 12RB10 | United States | Pennsylvania | Dolomite | Williams's Station Berk's Co. |
| 14La10 | United States | Pennsylvania | Dolomite | Kerberburgh |
| 6LB3 | United States | Pennsylvania | Sandstone | Oil City |
| 7LA17 | United States | Pennsylvania | Argillite (Slate) | Slatington |
| 6LA18 | United States | Pennsylvania | Sandstone | Queens Run Clinton Co. |
| 6RA5 | United States | Pennsylvania | Sandstone | Mauch Chunk |
| 7La18 | United States | Pennsylvania | Quartzite | Mapleton |
| 6RA6 | United States | Pennsylvania | Sandstone | Farrandsville |
| 14RB38 | United States | Pennsylvania | Marble | Pine Grove Schuylkill Co. |
| 6RA7 | United States | Pennsylvania | Sandstone | Derry Station Westmorland Co. |
| 6RB1 | United States | Pennsylvania | Quartzite | Huntingdon |
| 12RA10 | United States | Pennsylvania | Marble | Wrightsville |
| 6RB14 | United States | Pennsylvania | Diabase | Reading |
| 13LB39 | United States | Pennsylvania | Limestone | Paxton Station Dauphin Co. |
| 10R51 | United States | Pennsylvania | Argillite (Slate) | Lynnport |
| 13RA8 | United States | Pennsylvania | Dolomite | Valley Branch Chester Co. |
| 6RB15 | United States | Pennsylvania | Argillite (Slate) | Bangor |
| 11LB6 | United States | Pennsylvania | Dolomite | Harrisburg |
| 6RB16 | United States | Pennsylvania | Diabase | Round Top Gettysburg |
| 11LB7 | United States | Pennsylvania | Dolomite | Reading |
| 9La17 | United States | Pennsylvania | Sandstone | Schickshinny Luzerne Co. |
| 10RA11 | United States | Pennsylvania | Dolomite | York |
| 6RB17 | United States | Pennsylvania | Gneiss | Philadelphia |
| 10RB20 | United States | Pennsylvania | Argillite (Slate) | Slatington |
| 12LA9 | United States | Pennsylvania | Dolomite | Orbisonia |
| 9LA20 | United States | Pennsylvania | Sandstone | Pond Eddy |
| 13La39 | United States | Pennsylvania | Marble | Columbia |
| 6RB18 | United States | Pennsylvania | Gneiss | Chester |
| 7RA13 | United States | Pennsylvania | Limestone | Harrisburg |
| 10RB21 | United States | Pennsylvania | Argillite (Slate) | Slatington |
| 6RB2 | United States | Pennsylvania | Sandstone | Franklin |
| 7RA15 | United States | Pennsylvania | Limestone | Lebanon |
| 8RB19 | United States | Pennsylvania | Sandstone | Corry |
| 7RA16 | United States | Pennsylvania | Limestone | Wernersville |
| 8RA19 | United States | Pennsylvania | Sandstone | Lumberton |
| 7RA17 | United States | Pennsylvania | Argillite (Slate) | Slatedale |
| 6Lb5 | United States | Pennsylvania | Sandstone | Nicholson |
| 6LB6 | United States | Pennsylvania | Sandstone | Prospect |
| 14LB38 | United States | Pennsylvania | Limestone | Palmyra |
| 10La8 | United States | Pennsylvania | Dolomite | Easton |
| 12RB31 | United States | Pennsylvania | Marble | Morristown |
| 13Lb8 | United States | Pennsylvania | Marble | Lancaster |
| 6LB8 | United States | Pennsylvania | Sandstone | Webster |
| 10L51 | United States | Pennsylvania | Argillite (Slate) | Lynnport |
| 14LB39 | United States | Pennsylvania | Limestone | Hyndman |
| 12RB32 | United States | Pennsylvania | Limestone | Huntingdon |
| 14RB9 | United States | Pennsylvania | Dolomite | Chambersburg |
| 6RA1 | United States | Pennsylvania | Sandstone | Mainesburgh |
| 11LA7 | United States | Pennsylvania | Marble | Cedar Hollow Lime Co. |
| 6RA10 | United States | Pennsylvania | Sandstone | Johnstown |
| 8LB17 | United States | Pennsylvania | Limestone | Richland Station Lebanon Co. |
| 10LB18 | United States | Pennsylvania | Argillite (Slate) | Lynnport |
| 9RB18 | United States | Pennsylvania | Sandstone | Scottsdale |
| 6RA17 | United States | Pennsylvania | Sandstone | Greensburgh |
| 10Lb19 | United States | Pennsylvania | Sandstone | Stoop's Ferry |
| 9RB19 | United States | Pennsylvania | Sandstone | Erie |
| 6RA18 | United States | Pennsylvania | Sandstone | Danville |
| 13LA8 | United States | Pennsylvania | Dolomite | Plymouth |
| 6LA6 | United States | Pennsylvania | Sandstone | Scottsdale |
| 9RA17 | United States | Pennsylvania | Argillite (Slate) | Lynnport |
| 6RA19 | United States | Pennsylvania | Quartzite | Jacksonwald |
| 8La18 | United States | Pennsylvania | Argillite (Slate) | Bangor |
| 6La7 | United States | Pennsylvania | Sandstone | Meshoppen |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 14RB10 | United States | Pennsylvania | Dolomite | Leaman Place Lancaster Co. |
| 6RA2 | United States | Pennsylvania | Sandstone | Columbia |
| 7LB17 | United States | Pennsylvania | Gneiss | Chester |
| 8La19 | United States | Pennsylvania | Diabase | Goldsboro |
| 13RB36 | United States | Pennsylvania | Limestone | N. Annville |
| 14LB9 | United States | Pennsylvania | Limestone | Flourtown |
| 6La8 | United States | Pennsylvania | Sandstone | Altoona |
| 9RA20 | United States | Pennsylvania | Sandstone | Uniontown |
| 11RB8 | United States | Pennsylvania | Dolomite | Carlisle |
| 13RB37 | United States | Pennsylvania | Limestone | Myerstown |
| 6LB1 | United States | Pennsylvania | Sandstone | Plains |
| 5La46 | United States | Rhode Island | Granite | Westerly |
| 5RA46 | United States | Rhode Island | Granite | Niantic |
| 4RB18 | United States | Rhode Island | Granite | Westerly |