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.

Engineering Laboratory

Materials and Structural Systems Division

Search the Stone wall

Share

Search by state, country, classification, source, wall number or description.

Wall Number Country State Classification Source Description
7LB23 United States North Carolina Quartz Charlotte white, dark-spotted, Leopard Rock, Porphyritic
S1-11 United States Rhode Island Granite Westerly gray, fine-grain, biotite
12RB7 United States New York Limestone Indian Res. Onondaga Co. gray, medium grain, compact, fossiliferous, magnesian
5LA11 United States Ohio Sandstone Windham cream-colored, coarse grain, porous, carboniferous
S2-113 United States Tennessee Sandstone Crossville Crab Orchanrd Stone, variegated colors, some on bed and some on edge, in 3- to 6 in. thicknesses
13LB18 United States Vermont Marble W. Rutland cut from same block as 13RB20, grayish-white, dark-veined, Lower Silurian, calcite
5LB28 United States California Tuff Cordelia gray, coarse andesite
8La11 United States Illinois Limestone Belknap gray, medium-gr, compact
S2-19 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
5RA43 United States New Jersey Diabase Weehawken dark gray, fine grain
8LB27 United States Maine Granite St. George dark gray, fine grain, biotite
S2-77 United States New Hampshire Granite Concord gray, medium-gray, muscovite-biotite
13RB5 United States New York Limestone Kingston dark gray, medium grain, compact, magnesian, carboniferous
6LA12 United States Pennsylvania Sandstone Reading brownish-purple, medium grain, porous, Triassic
8RA40 United States New Jersey Sandstone Belleville brown, medium grain, porous, Triassic
14LB14 United States Iowa Dolomite Osage Sta. dark gray, coarse grain, compact, fossiliferous-bearing, Devonian
6LB28 United States New York Sandstone Mt. Pleasant blue gray, fine grain, compact, Devonian
9EE United States Ohio Sandstone Glenmont gray and buff, coarse-grain, porous, Briar Hill
14RA27 United States Tennessee Limestone Nashville dark gray, medium grain, compact, fossiliferous, Lower Silurian
6RA41 United States Maryland Argillite (Slate) Nr. Cardiff blue-black, medium coarse texture, roofing
9LB25 United States North Carolina Serpentine Reem's Creek dark brownish-green, light-green specks
14RB41 United States Maryland Marble Cockeysville brown, medium grain, dolomite, Mar Villa
10lq United States Arkansas Marble Batesville Motteled gray and white, fine grain, calcite
10RB21 United States Pennsylvania Argillite (Slate) Slatington blue-black, fine grain, roofing and tile slate
11LA3 United States Wisconsin Dolomite Waukesha drab, fine grain, compact, Upper Silurian
11RA1 United States Indiana Dolomite Wabash light yellowish, fine grain, compact, Niagara
11RB32 United States Virginia Granite Namozine Dist. greenish-gray, fine grain, biotite
12LB1 United States Indiana Dolomite Eaton dark, mottled, coarse grain, compact, Niagara
12RA30 United States Illinois Limestone Joliet cut from same block as 12LA31, light gray, fine grain, compact, Lower Silurian
2c United States Alabama Limestone Rockwood light gray, fine grain, porous, oolitic
6RB23 United States North Carolina Granite Mt. Airy yellowish-gray, medium grain, biotite
9LB9 United States Iowa Limestone Earlham drab, coarse grain, compact, fossiliferous, carboniferous
3LQ United States Missouri Limestone Carthage gray, medium grain, crystalline calcite, Carthage Marble
12RB14 United States Missouri Dolomite St. Louis light gray, fine grain, compact, Lower carboniferous
4R9 United States Ohio Sandstone Berea light gray, fine grain, porous
S1-40 United States Pennsylvania Sandstone Wyoming dark-gray, fine-grain, compact
5La40 United States South Carolina Granite Greenville dark gray, fine grain, biotite
7RB29 United States Texas Granite Burnet Red, fine grain, biotite
S2-142 United States California Marble Columbia gray, medium-grain dolomitic marble, Columbia Dark Vein
13LB47 United States Texas Limestone Cedar Park cut from same block as 10RA20, light buff, fine grain, cellular, large shells, Cordova Shell
5RA14 United States Ohio Sandstone Coshocton red and buff streaked, coarse grain, porous carboniferous
8La40 United States West Virginia Sandstone Parkersburg greenish-gray, fine grain, compact, Devonian
S2-48 United States New Hampshire Granite Concord gray, medium grain, muscovite-biotite
13RB19 United States Vermont Marble Center Rutland white, gray-veined, fine grain, Lower Silurian, calcite
5RB30 United States California Tuff Lordsburg dull-red, fine grain, compact, basalt
8RA11 United States Illinois Limestone Rockport light gray, medium grain, compact, fossiliferousbearing
S3-5 United States Indiana Limestone Bedford buff, medium-grain, oolitic, Grade A
6LA41 United States South Carolina Granite Aiken Co. dark gray, coarse grain, biotite
8RB27 United States Maine Granite Dedham gray and white, coarse grain, Porphyritic, bitotite
14LB43 United States Nebraska Limestone LaPlatte light gray, medium grain, compact, Permian
6RA12 United States Pennsylvania Sandstone Lucesco gray, dark-streaked, medium grain, compact, carboniferous
9LA38 United States Indiana Sandstone Cannelton light brown, fine grain, porous
14RB12 United States Indiana Limestone Oakdale light gray, fine grain, compact, Niagara
1C United States Minnesota Limestone Mankato buff, fine grain, cellular, magnesian
10la12 United States Ohio Limestone Columbus dark, fine grain, compact, magnesian, Devonian
10LA13 United States Maryland Dolomite Findlay gray, fine grain, finely cellular, compact
10LB26 United States Massachusetts Melaphyre Brighton olive green, white-speckled, medium grain, compact
10RA38 United States New Hampshire Granite Fitzwilliams gray, fine grain, biotite
10RB6 United States Missouri Limestone Bear Creek Marion Co. gray, coarse grain, compact, encrinitial, semicrystalline
11Lb23 United States Tennessee Marble Springville brown, medium grain, fossiliferous, Niagara
11RA4 United States Tennessee Marble Cleveland pink, coarse, magnesian, Lower Silurian
12LA15 United States Iowa Dolomite Marshalltown light gray, fine grain, compact, Lower carboniferous
12LB4 United States Tennessee Marble Rogersville brown and gray-mottled, coarse, magnesian, fossiliferous, Lower Silurian
2R5 United States Vermont Marble Danby white, yellow-clouded, medium grain, calcite, Imperial Danby Buildindg and Memorial Grade
6WE United States Ohio Sandstone Amherst gray, medium-grain, porous
4LA12 United States Vermont Marble Brandon white, green and gray veins, medium grain, calcite
7LB24 United States Maine Granite Pownal gray, fine grain, biotite
S1-12 United States Unknown Granite Unknown bluish-gray, fine-grain, biotite
12RB8 United States New York Limestone Springfield Center dark-drab, fine grain, compact, magnesian, Devonian
7RA40 United States Montana Diorite Helena gray, medium grain
S2-114 United States Tennessee Sandstone Crossville Crab Orchanrd Stone, variegated colors, some on bed and some on edge, in 3- to 6 in. thicknesses
13LB19 United States Vermont Marble Center Rutland cut from the same block as 13LB17, white, gray-veined, fine grain, Lower Silurian, calcite
5LB29 United States California Basalt Bridgeport gray, fine grain, compact
8LA12 United States Illinois Limestone Kinderhook light gray, medium grain, compact, semicrystalline, carboniferous
S2-2 United States Texas Shellstone Cedar Park light-gray, coarse
5RA44 United States Vermont Argillite (Slate) Castleton blue-black, fine grain, rough-texture roofing slate
8LB28 United States New York Sandstone Hulberton brownish-purple, fine grain, porous, Upper Silurian
S2-78 United States North Carolina Granite Mt. Airy light-gray, medium-grain, muscovite-biotite
13RB6 United States New York Limestone Willsborough black, fine grain, compact, fossiliferous, magnesian, Lower Silurian
6La13 United States Pennsylvania Sandstone Monongahela City buff, coarse grain, porous, carboniferous
8ra41 United States New Jersey Sandstone Greensburg light Brownish-purple, coarse grain, compact, Triassic
14LB15 United States Iowa Dolomite Manchester light gray, fine grain, compact, Niagara
6LB29 United States New York Gneiss Hastings dark gray, white-banded, fine grain, biotite
14RA28 United States Tennessee Limestone Carter's Station Creek light gray, coarse grain, compact, fossiliferous
6RA42 United States New Jersey Sandstone Martinville drab, fine grain, compact, Triassic
14RB42 United States Maryland Marble Frederick variegated, coarse, Triassic, conglomerate
1R7 United States Massachusetts Granite Quincy dark gray, coarse grain, riebeckite-aegirite
10LA42 United States New Jersey Diabase Jersey City dark gray, fine grain
10R51 United States Pennsylvania Argillite (Slate) Lynnport cut from same block as 10LB18, dark gray, fine grain, slate
10RB22 United States Ohio Sandstone Warren gray, fine grain, porous, Lower carboniferous, flagstone
11LA30 United States New York Marble Greensport gray and pink, medium grain, fossiliferous, Upper Silurian
11RA10 United States Ohio Dolomite Milton Twp. Woods Co. gray, fine grain, compact, Devonian
11RB33 United States Oregon Sandstone Jacksonville gray, fine grain, porous
12LB10 United States Ohio Dolomite New Paris drab, fine grain, compact, Upper Silurian
12RA31 United States Maryland Marble Keedysville gray, fine grain, fossiliferous
2D United States Virginia Greenstone Lynchburg green, coarse grain, actinolite schist, Virginia Greenstone
6RB24 United States North Carolina Granite Salisbury light gray, fine grain, Archaean, biotite
9LQ United States Tennessee Marble Knoxville pink, medium grain, calcite, Craig Edward medium Pink
3R1 United States Vermont Marble Danby white, dark-clouded, medium grain, calcite, Danby D Building Grade
7LA35 United States Missouri Granite Iron Co. Red, medium grain, biotite