Skip to main content
U.S. flag

An official website of the United States government

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
10LB18 United States Pennsylvania Argillite (Slate) Lynnport
8LB17 United States Pennsylvania Limestone Richland Station Lebanon Co.
6RA10 United States Pennsylvania Sandstone Johnstown
13LA8 United States Pennsylvania Dolomite Plymouth
10Lb19 United States Pennsylvania Sandstone Stoop's Ferry
9RB18 United States Pennsylvania Sandstone Scottsdale
6RA17 United States Pennsylvania Sandstone Greensburgh
6LA6 United States Pennsylvania Sandstone Scottsdale
14RB10 United States Pennsylvania Dolomite Leaman Place Lancaster Co.
9RA17 United States Pennsylvania Argillite (Slate) Lynnport
9RB19 United States Pennsylvania Sandstone Erie
6RA18 United States Pennsylvania Sandstone Danville
13RB36 United States Pennsylvania Limestone N. Annville
14LB9 United States Pennsylvania Limestone Flourtown
6La7 United States Pennsylvania Sandstone Meshoppen
9RA19 United States Pennsylvania Sandstone Franklin
11RB8 United States Pennsylvania Dolomite Carlisle
6RA19 United States Pennsylvania Quartzite Jacksonwald
8La18 United States Pennsylvania Argillite (Slate) Bangor
13RB37 United States Pennsylvania Limestone Myerstown
6La8 United States Pennsylvania Sandstone Altoona
9RA20 United States Pennsylvania Sandstone Uniontown
6RA2 United States Pennsylvania Sandstone Columbia
7LB17 United States Pennsylvania Gneiss Chester
8La19 United States Pennsylvania Diabase Goldsboro
14RA10 United States Pennsylvania Dolomite Mill Lane Chester Co.
6LB1 United States Pennsylvania Sandstone Plains
6LB14 United States Pennsylvania Diabase Collins Station Lancaster Co.
6LB15 United States Pennsylvania Argillite (Slate) Slatington
6RB5 United States Pennsylvania Sandstone Greenville
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
14LA9 United States Pennsylvania Limestone Spruce Creek Huntingdon Co.
13RA37 United States Pennsylvania Limestone Richland Station Lebanon Co.
7La12 United States Pennsylvania Limestone Hummelstown
13RA38 United States Pennsylvania Marble Howellsville
14LB10 United States Pennsylvania Marble York
6RA4 United States Pennsylvania Sandstone Connellsville
13RB9 United States Pennsylvania Dolomite Potts Landing Berk's Co.
9Lb19 United States Pennsylvania Argillite (Slate) Chapman's Station
7La14 United States Pennsylvania Limestone Wernersville
13RA39 United States Pennsylvania Marble Columbia
7La15 United States Pennsylvania Limestone Lebanon
7RB18 United States Pennsylvania Granite Siesholtzville
6La16 United States Pennsylvania Sandstone Titusville
12RB10 United States Pennsylvania Dolomite Williams's Station Berk's Co.
14La10 United States Pennsylvania Dolomite Kerberburgh
7La16 United States Pennsylvania Limestone Lebanon
6La17 United States Pennsylvania Sandstone Skinner's Eddy
6LB3 United States Pennsylvania Sandstone Oil City
7LA17 United States Pennsylvania Argillite (Slate) Slatington
14RB38 United States Pennsylvania Marble Pine Grove Schuylkill Co.
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
12RA10 United States Pennsylvania Marble Wrightsville
6RA7 United States Pennsylvania Sandstone Derry Station Westmorland Co.
10R51 United States Pennsylvania Argillite (Slate) Lynnport
13RA8 United States Pennsylvania Dolomite Valley Branch Chester Co.
6RB1 United States Pennsylvania Quartzite Huntingdon
13LB39 United States Pennsylvania Limestone Paxton Station Dauphin Co.
11LB6 United States Pennsylvania Dolomite Harrisburg
6RB14 United States Pennsylvania Diabase Reading
10RA11 United States Pennsylvania Dolomite York
11LB7 United States Pennsylvania Dolomite Reading
6RB15 United States Pennsylvania Argillite (Slate) Bangor
13La39 United States Pennsylvania Marble Columbia
10RB20 United States Pennsylvania Argillite (Slate) Slatington
12LA9 United States Pennsylvania Dolomite Orbisonia
6RB16 United States Pennsylvania Diabase Round Top Gettysburg
9La17 United States Pennsylvania Sandstone Schickshinny Luzerne Co.
10RB21 United States Pennsylvania Argillite (Slate) Slatington
6RB17 United States Pennsylvania Gneiss Philadelphia
9LA20 United States Pennsylvania Sandstone Pond Eddy
6RB18 United States Pennsylvania Gneiss Chester
7RA13 United States Pennsylvania Limestone Harrisburg
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
14LB38 United States Pennsylvania Limestone Palmyra
7RA17 United States Pennsylvania Argillite (Slate) Slatedale
10L51 United States Pennsylvania Argillite (Slate) Lynnport
6Lb5 United States Pennsylvania Sandstone Nicholson
14LB39 United States Pennsylvania Limestone Hyndman
10La8 United States Pennsylvania Dolomite Easton
12RB31 United States Pennsylvania Marble Morristown
13Lb8 United States Pennsylvania Marble Lancaster
11LA7 United States Pennsylvania Marble Cedar Hollow Lime Co.
6LB6 United States Pennsylvania Sandstone Prospect
12RB32 United States Pennsylvania Limestone Huntingdon
5La46 United States Rhode Island Granite Westerly
5RA46 United States Rhode Island Granite Niantic
4RB18 United States Rhode Island Granite Westerly