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
S2-33 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-91 United States Maine Granite Deer Island pinkish-gray, coarse-grain, biotite
2L2 United States Vermont Marble Florence light gray, dark-clouded, medium grain, calcite, Sterling PV Memorial Grade
6RB34 United States Minnesota Granite Watab Red, coarse grain, hornblende
3r5 United States New York Marble Moriah cut from same block as 3L5, gray, green-spotted, coarse, verde-antique
7LA45 United States New Mexico Sandstone Santa Fe brownish-purple, coarse grain, porous
4RA21 United States Vermont Marble Center Rutland cut from the same block as 13LB17, white, gray-veined, fine grain, Lower Silurian, calcite
7RA20 United States Ohio Sandstone Elyria gray, fine grain, porous, Lower carboniferous
5LB1 United States Ohio Sandstone N. Hampton gray, fine grain, porous, Lower carboniferous, bluestone
5RA25 United States North Carolina Granite Mecklenburg Co. gray, coarse grain, hornblende
5RB41 United States South Carolina Granite Fairfield Co. gray, medium grain, biotite
8RA22 United States Massachusetts Gneiss Becket pink-gray, fine grain, biotite-muscovite
6LB1 United States Pennsylvania Sandstone Plains dark-brown, banded, fine grain, compact, Devonian
8RB38 United States Maryland Gneiss Ilchester dark gray, fine grain, Laurentian hornblende
10LA45 United States New Hampshire Granite Lebanon pink, coarse grain, biotite-epidote
6RA23 United States North Carolina Granite Salisbury pinkish-gray, coarse grain, biotite
9La7 United States Vermont Marble Rutland white, fine grain, Lower Silurian, calcite
10RA11 United States Pennsylvania Dolomite York black, fine grain, compact, calcareous, Lower Silurian
10RB25 United States Maine Granite Hallowell light gray, fine grain, muscovite-biotite
11LA33 United States Ohio Limestone Lumberton yellow-spotted, fine grain, porous, Upper Silurian
11RA13 United States Missouri Dolomite De Soto light gray, fine grain, compact, siliceous, Lower Silurian
11RB36 United States New Hampshire Granite Enfield gray, fine grain, biotite
12LB13 United States Montana Marble Helena dark gray, fine grain, brecciated, dolomite
12RA34 United States Indiana Limestone Oakalla light gray, fine grain, compact, fossiliferous, Lower carboniferous
12RB32 United States Pennsylvania Limestone Huntingdon nearly black, fine grain, compact
13LA7 United States Minnesota Dolomite Stillwater light buff, fine grain, compact, Lower Silurian
13RA21 United States Iowa Limestone Bentonsport gray, medium grain, compact, semi-crystalline, Sub-carboniferous
13RB37 United States Pennsylvania Limestone Myerstown blue gray, fine grain, compact, Lower Silurian
14RA16 United States Iowa Dolomite Franklin light gray, fine grain, compact, Lower carboniferous
1R1 United States Connecticut Granite Leete Isl. pink and black-mottled, medium grain, biotite
9RA22 United States Ohio Sandstone Newark buff, coarse grain, porous, Lower carboniferous
9RB39 United States Indiana Sandstone Paoli light gray, fine grain, porous, Lower carboniferous
S2-1 United States Wyoming Sandstone Laramie light-gray, medium-grain, porous
S2-157 United States Tennessee Marble Knoxville gray, medium-grain calcite marble, Meadow Gray
S2-62 United States North Carolina Granite Mt. Airy Mt Airy Granite, veneer
3C United States Texas Limestone Cedar Park light buff, fine grain, porous, oolitic, Cordova Cream
7La16 United States Pennsylvania Limestone Lebanon dark blue gray, fine grain, compact, Lower Silurian
4LB12 United States Indiana Limestone Salem light gray, medium grain, porous, Lower carboniferous, oolitic
7LB35 United States Nevada Andesite Reno light gray, medium grain, compact, hornblende
5LA23 United States North Carolina Granite Davidson College dark gray, medium grain, hornblende-biotite
5LB4 United States Ohio Sandstone New Philadelphia buff, coarse grain, porous, carboniferous
8LA23 United States Massachusetts Diabase Medford dark gray, coarse grain
5RB13 United States Massachusetts Granite Quincy dark gray, coarse grain, hornblende
8LB39 United States West Virginia Sandstone Wheeling gray, medium grain, porous, carboniferous
6LA24 United States North Carolina Granite Concord light red, fine grain, biotite
6LB4 United States Pennsylvania Sandstone Schickshinny Luzerne Co. dark gray, coarse grain, compact, carboniferous
9LA20 United States Pennsylvania Sandstone Pond Eddy dark blue gray, fine grain, compact, Devonian
10Lb3 United States Tennessee Marble Doughertyville variegated, medium grain, fossiliferous, Lower Silurian
6RB10 United States Pennsylvania Diabase St. Peters dark gray, medium grain, compact, St Peters Granite
9Lb37 United States Oregon Sandstone Forest Grove gray, fine grain, porous
10RA41 United States New Hampshire Granite Farmington gray, fine grain, biotite-muscovite
10RQ United States Connecticut Sandstone Fair Haven brown, coarse, porous, arkose, Fair Haven Granite
11LB27 United States Arkansas Quartzite Bald Knob buff, fine grain, compact
11RA8 United States Pennsylvania Limestone Cove Statioan Bedford Co. gray, coarse grain, compact, magnesian, crystalline, Devonian
12La19 United States Vermont Marble Center Rutland cut from same block as 13RB19, white, gray-veined, fine grain, Lower Silurian, calcite
12LB8 United States Minnesota Dolomite Kasota yellow, fine grain, compact, Lower Silurian
13LA21 United States Iowa Limestone Quarry, Marshall Co. gray, medium grain, compact, fossiliferous, Lower carboniferous
13LB37 United States Georgia Marble Tate white dark-clouded, coarse grain, Lower Silurianower calcite
13RA9 United States Connecticut Marble E. Canaan bluish-white, coarse grain, dolomite
16EE United States Indiana Limestone Bedford gray, medium-grain, oolitic
27WE United States Florida Limestone New Port Richey light-buff, fine-grain, compact
9RB10 United States Iowa Limestone Davenport drab, fine grain, compact, cellular, Devonian
S2-129 United States Florida Limestone New Port Richey light-buff, fine-grain, compact
S2-34 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-92 United States Maine Granite High Pine pink, coarse-grain, biotite, Swensons Pink
2L3 United States Vermont Marble Florence light gray, dark-veined, medium grain, calcite, Sterling PV Memorial Grade
6RB35 United States Connecticut Gneiss Ansonia gray, fine grain, compact, muscovite-biotite
4RB10 United States Maryland Marble Cockeysville white, medium grain, dolomite
7RA22 United States North Carolina Quartzite Hot Springs purple, fine grain, compact
5LB10 United States Massachusetts Granite Fitchburg gray, coarse grain, muscovite-biotite
7RB40 United States New Hampshire Granite Milford pinkish-gray, fine grain, biotite
5RA26 United States Maine Granite Biddeford gray, coarse grain, biotite
5RB42 United States New Jersey Gneiss Bloomingdale greenish-gray, fine grain, biotite
8RA23 United States Massachusetts Sandstone E. Long Meadow light reddish-brown, porous, fine grain
6LB10 United States Pennsylvania Sandstone Wampum brown, fine-grain, compact Carboniferous
8RB39 United States New Jersey Sandstone Little Falls light brown, fine grain, porous, Triassic
10LA46 United States New Hampshire Granite Fitzwilliams gray, fine grain, biotite
6RA24 United States North Carolina Granite Salisbury brownish-gray, medium grain, biotite
9La8 United States Vermont Marble Southerland Falls white, fine grain, Lower Silurian, calcite
10RA12 United States Kansas Dolomite Richland Twp. Butler Co. buff, fine grain, compact, siliceous
10RB26 United States Maine Argillite (Slate) Brownsville uniform blue-black, electrical
11LA34 United States South Carolina Marble Unknown light blue gray, dark-banded, medium grain, calcite
11RA14 United States Iowa Dolomite Lansing light gray, fine grain, cellular, Lower carboniferous
11RB37 United States New Jersey Sandstone Woodsville blue-black, fine grain, compact
12LB14 United States Missouri Dolomite Osage light spotted, coarse grain, porous, siliceous
12RA35 United States Indiana Limestone Corydon nearly white, fine grain, compact, oolitic
12RB33 United States Ohio Limestone Millersburg dark, white-spotted, fine grain, compact, carboniferous
13LA8 United States Pennsylvania Dolomite Plymouth light drab, fine grain, compact, Lower Silurian
13RA22 United States Missouri Sandstone Miami Station Carroll Co. gray, fine grain, porous, carboniferous
13RB38 United States Illinois Limestone Sagetown light gray, fine grain, compact
14La48 United States Texas Limestone Cedar Park light buff, fine grain, porous, oolitic, Cordova Cream
14RA17 United States Iowa Limestone Waverly buff, fine grain, compact, Devonian
9RA23 United States Massachusetts Granite W. Quincy dark gray, coarse grain, hornblende
9RB4 United States North Carolina Marble Valley Town blue-black, fine grain, Archaean, calcite
S2-10 United States Ohio Sandstone McDermott buff, fine-grain, porous
S2-158 United States Tennessee Marble Knoxville pink, medium-grain calcite marble, Cumberland Pink
S2-63 United States North Carolina Granite Mt. Airy Mt Airy Granite, veneer
3D United States Virginia Greenstone Lynchburg green, coarse grain, actinolite schist, Virginia Greenstone
7LA17 United States Pennsylvania Argillite (Slate) Slatington blue-black, fine grain, roofing and tile slate
4LB13 United States Maryland Marble Cockeysville white, coarse grain