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
14RB29 United States Tennessee Marble Rogersville variegated, medium grain, fossiliferous, Lower Silurian
1L9 United States Massachusetts Granite Quincy dark gray, coarse grain, riebeckite-aegirite
9RA20 United States Pennsylvania Sandstone Uniontown buff, fine grain, porous, Sub-carboniferous
9RB37 United States Oregon Sandstone Oakland blue gray, fine grain, compact, argillaceous
S1-8 United States Indiana Limestone Bedford gray, oolitic
S2-155 United States Tennessee Marble Knoxville pink, medium-grain calcite marble, Champion Pink
S2-60 United States North Carolina Granite Mt. Airy Mt Airy Granite, veneer
33WE United States Indiana Limestone Bedford buff, medium-grain, oolitic
7La14 United States Pennsylvania Limestone Wernersville water-blue, dark-veined, fine grain, compact, crystalline, Lower Silurian
4LB10 United States Georgia Marble Tate pink, black-veined, coarse grain, Lower Silurianower calcite
7LB33 United States Connecticut Gneiss Haddam dark gray, fine grain, hornblende-biotite
5LA21 United States North Carolina Gneiss Greensborough gray, coarsely porphyritic, biotite
7RA9 United States Alabama Limestone Tuscumbia light gray, medium grain, compact, fossiliferous-bearing
5LB38 United States Maryland Gneiss Baltimore light gray, fine grain, biotite
8LA21 United States Ohio Sandstone Steubensville Jefferson Co. gray, coarse grain, porous, carboniferous
5RB11 United States Massachusetts Granite Quincy dark-red, coarse grain, hornblende
8LB37 United States Missouri Sandstone Rockville light buff, fine grain, porous, calcareous, carboniferous
6La22 United States Massachusetts Granite Cohasset pink, coarse grain, biotite
10La15 United States Vermont Marble W. Rutland white, fine grain, Lower Silurian, calcite
9LA19 United States Pennsylvania Sandstone Curwensville buff-tinted, coarse grain, porous
10LB28 United States Maine Argillite (Slate) Monson uniform blue-black, electrical
6RA9 United States Pennsylvania Sandstone Garland yellow, coarse grain, porous, carboniferous
9Lb35 United States South Dakota Quartzite Sioux Falls light reddish, fine grain, Potsdam
10RA4 United States Vermont Marble Mallett's Bay cut from same block as 10LA3, red and white, fine grain, Cambrian, dolomite
10RB8 United States Missouri Limestone Herculaneum gray-buff, fine grain, calcite, Herculaneum Buff
11RA6 United States New York Limestone Buffalo dark gray, medium grain, compact, magnesian, Devonian
12LA17 United States Iowa Dolomite La Porte buff-banded, fine grain, compact, Devonian
12LB6 United States New York Limestone Schoharie black, fine grain, compact, magnesian, Upper Silurian
13LA2 United States Illinois Dolomite Lemont light gray, fine grain, compact, Upper Silurian
13RA7 United States Minnesota Dolomite Mankato buff, fine grain, porous, Lower Silurian
14LA17 United States Iowa Dolomite Keokuk drab, medium grain, compact, siliceous, Lower carboniferous
16B United States Maine Granite Frankfort gray, medium grain, biotite, Mt Waldo
26WE United States Wyoming Sandstone Laramie light-pink, medium-grain, porous
9RA9 United States Iowa Limestone Tracey Station, Marion Co. light gray, fine grain, porous, fossiliferous, Lower carboniferous
S2-127 United States Texas Shellstone Cedar Park light-gray, coarse
S2-32 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-90 United States Maine Granite Deer Island pinkish-gray, coarse-grain, biotite
2L17 United States Missouri Limestone Phenix gray, medium grain, crystalline calcite, Napoleon Gray
6rb33 United States Colorado Tuff Castle rock light gray, fine grain, rhyolite
3R4 United States Tennessee Marble Quarryville cut from same block as 3L4, brown, gray-spotted, coarse calcite
7LA44 United States Michigan Sandstone Marquette purplish-brown, medium grain, compact, Lower Silurian
4RA20 United States Vermont Marble Center Rutland cut from same block as 13RB19, white, gray-veined, fine grain, Lower Silurian, calcite
5LA9 United States Ohio Sandstone Piketon light gray, fine grain, porous, Lower carboniferous
7RB39 United States New Jersey Sandstone Avondale brownish-purple, medium grain, porous, Trais
5RA24 United States North Carolina Granite Rockingham pinkish-gray, coarse grain, prophyritic biotite
5RB40 United States South Carolina Granite Columbia gray, medium grain, biotite
8RA21 United States Ohio Sandstone Brooklyn light buff, rust-spotted, medium grain, porous, Lower carboniferous
6La9 United States Pennsylvania Sandstone Waynesburgh buff, coarse grain, porous, carboniferous
8RB37 United States Missouri Sandstone Clinton buff, fine grain, compact, carboniferous
10LA44 United States New Hampshire Granite Concord gray, fine grain, biotite-muscovite
6RA22 United States Massachusetts Granite W. Quincy dark gray, coarse grain, hornblende
10RA10 United States New York Limestone Prescott gray, medium grain, compact, fossiliferous, magnesian, Lower Silurian
10RB24 United States Massachusetts Granite Quincy pink, coarse grain, hornblende
11LA32 United States Montana Marble Helena black and gold, fine grain
11RA12 United States Missouri Dolomite Bowling Green mottled-buff, fine grain, compact, Lower Silurian
11RB35 United States Montana Sandstone Great Falls brownish-purple, fine grain, compact
12LB12 United States Kentucky Dolomite Louisville gray, fine grain, compact, fossiliferous, calcite, Lower carboniferous
12RA33 United States Indiana Limestone Spencer light gray, fine grain, compact, Lower carboniferous
12RB31 United States Pennsylvania Marble Morristown white, fine grain, Lower Silurian
13LA6 United States New York Limestone Waterloo black, fine grain, compact, magnesian, Devonian
13RA20 United States Iowa Limestone Sigourney Station, Keokuk Co. light gray, fine grain, compact, Lower carboniferous
13RB36 United States Pennsylvania Limestone N. Annville darka blue gray, fine grain, compact, Lower Silurian
14RA15 United States Iowa Dolomite Winterset light gray, medium grain, porous, fossiliferous, carboniferous
14RB3 United States Illinois Dolomite Chicago gray, black-spotted, coarse grain, compact, bituminous
1Lq United States Missouri Limestone Carthage gray, medium grain, crystalline calcite, Carthage Marble
9RA21 United States Ohio Sandstone Monclava drab, fine grain, porous, Lower carboniferous
9RB38 United States Oregon Sandstone Near Albany brown, fine grain, porous
S1-9 United States Indiana Limestone Bedford gray, oolitic
S2-156 United States Tennessee Marble Knoxville gray, medium-grain calcite marble, Appalachian Gray
S2-61 United States North Carolina Granite Mt. Airy Mt Airy Granite, veneer
3B United States New Hampshire Granite Redstone pink, coarse grain, biotite, Conway Pink
7La15 United States Pennsylvania Limestone Lebanon dark blue gray, fine grain, compact, Lower Silurian
4Lb11 United States Tennessee Limestone Knoxville pinkish-gray, medium grain, crystalline, compact, Lower Silurian
7Lb34 United States Connecticut Gneiss Sterling gray, coarse grain, biotite-muscovite
5LA22 United States North Carolina Gneiss Henderson pinkish-gray, medium grain, biotite
5LB39 United States South Carolina Granite Charleston gray, fine grain, biotite
8LA22 United States Massachusetts Diabase Somerville gray, coarse grain
5RB12 United States Massachusetts Granite Quincy dark gray, coarse grain, hornblende
8LB38 United States Arizona Sandstone Yavapai Co. pinkish, fine grain, porous
6LA23 United States North Carolina Gneiss Morganton Depot. white, green-spotted, fine grain, horneblende
10LA16 United States Vermont Marble W. Rutland cut from same block as 10RA18, white, gray-veined, Lower Silurian, calcite
6LB39 United States Ohio Sandstone Youngstown gray, coarse grain, porous, carboniferous
9La2 United States Tennessee Marble Morristown light gray, medium grain, magnesian
10LB29 United States Maine Granite St. Thomaston gray, coarse grain, biotite
6RB1 United States Pennsylvania Quartzite Huntingdon light gray, fine grain
9LB36 United States Alabama Sandstone Greensport gray, fine grain, compact
10RA40 United States New Hampshire Granite Milford light gray, fine grain, biotite
10RB9 United States Vermont Marble Mallett's Bay dark-pink, fine grain, coarse, Cambrian, dolomite
11LB26 United States Iowa Sandstone Lewis yellowish-brown, coarse grain, porous, cretaceous
11RA7 United States New York Dolomite Rochester dark-drab, fine grain, compact, Devonian
12La18 United States Vermont Marble Danby white, medium grain, calcite, Imperial Yellow Danby
12LB7 United States New York Limestone Le Roy dark gray, fine grain, compact, magnesian, Devonian
13LA20 United States Iowa Coral Iowa City light gray, fine grain, compact, fossiliferous
13LB36 United States Utah Marble Clinton buff, brown-mottled, fine grain, fossiliferous
13RA8 United States Pennsylvania Dolomite Valley Branch Chester Co. bluish-drab, fine grain, compact
14LA18 United States Vermont Marble S. Wallingford white, fine grain, Lower Silurian, calcite
16C United States Alabama Limestone Rockwood light buff, fine grain, porous, oolitic
27EE United States Tennessee Travertine Nashville light-buff travertine
S1-26 United States Massachusetts Granite Quincy dark-gray, medium-grain, hornblende
S2-128 United States Indiana Limestone Bedford gray, medium-grain, oolitic