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
13LA37 United States New York Limestone Cottonwood Sta. light gray, medium grain, somewhat porous
11Ra25 United States Kansas Limestone Cottonwood cut from same block as 11LB22, nearly white, porous, coarse grain
11RA27 United States Kansas Limestone Cottonwood light gray, coarse grain, porous, Permian, Fusulina
11LB22 United States Kansas Limestone Cottonwood nearly white, porous, porous, coarse grain
S2-125 United States Kansas Limestone Cottonwood gray, coarse-grain, crystalline
5RA14 United States Ohio Sandstone Coshocton red and buff streaked, coarse grain, porous carboniferous
12LA34 United States Indiana Limestone Corydon nearly white, fine grain, compact, oolitic
12RA35 United States Indiana Limestone Corydon nearly white, fine grain, compact, oolitic
8RB19 United States Pennsylvania Sandstone Corry light gray, fine grain, compact, Sub-carboniferous
8RB2 Portugal Limestone Corredoura, Leiria light buff, coarse grain, cellular, fossiliferous
8RA29 United States New York Sandstone Corning blue gray, fine grain, compact, calcareous, Devonian
9LA11 United States Iowa Limestone Corning light buff, fine grain, compact, siliceous, carboniferous
5LB28 United States California Tuff Cordelia gray, coarse andesite
8LB9 Bermuda Limestone Coralline nearly white, coarsely cellular, friable
8RB10 Bermuda Limestone Coralline cut from the same block as 8LB9, nearly white, coarsely cellular, friable
7LB21 United States North Carolina Granite Contentnea Cr. Wilson Co. pink, coarse grain, porphyritic biotite
9RB13 United States Iowa Limestone Conrad light gray, medium grain, compact, oolitic, Lower carboniferous
6RA4 United States Pennsylvania Sandstone Connellsville light gray, fine grain, porous, carboniferous
7RA14 United States Pennsylvania Limestone Connellsville light blue, medium grain, compact, Lower carboniferous
6RA15 United States Pennsylvania Sandstone Connellsville green-tinted, brown, coarse, porous, carboniferous
8LB3 Portugal Marble Condeixa a Velha, Combra pink and drab-mottled, fine grain
8LA3 Portugal Marble Condeixa a Velha, Coimbra light pinkish-drab, fine grain
11B United States New Hampshire Granite Concord light gray, medium grain, muscovite-biotite, Concord Gray
5LB43 United States New Hampshire Granite Concord gray, fine grain, biotite-muscovite
5Lb44 United States New Hampshire Granite Concord gray, fine grain, biotite-muscovite
S2-76 United States New Hampshire Granite Concord gray, medium-grain, muscovite-biotite
S2-48 United States New Hampshire Granite Concord gray, medium grain, muscovite-biotite
S2-77 United States New Hampshire Granite Concord gray, medium-gray, muscovite-biotite
S2-80 United States New Hampshire Granite Concord gray, medium-grain, muscovite-biotite
10LA44 United States New Hampshire Granite Concord gray, fine grain, biotite-muscovite
6LA24 United States North Carolina Granite Concord light red, fine grain, biotite
14ra13 United States Ohio Dolomite Columbus Grove dark gray, fine grain, porous, bituminous, Upper Silurian
8LA43 United States Montana Sandstone Columbus dark gray, fine grain, porous, cretaceous
8RA43 United States Montana Sandstone Columbus drab-gray?, fine grain, compact, cretaceous
5LA14 United States Ohio Sandstone Columbus gray, fine grain, compact, Sub-carboniferous
7LA41 United States Montana Sandstone Columbus drab-gray?, fine grain, compact, cretaceous
10la12 United States Ohio Limestone Columbus dark, fine grain, compact, magnesian, Devonian
8RB42 United States Montana Sandstone Columbus dark gray, fine grain, porous, cretaceous
8RB43 United States Montana Sandstone Columbus drab-gray, fine grain, compact, cretaceous
8LB43 United States Montana Sandstone Columbus drab-gray?, fine grain, compact, cretaceous
13RB39 United States Illinois Limestone Columbia light gray, fine grain, porous, fossiliferous-bearing, Lower carboniferous
S2-142 United States California Marble Columbia gray, medium-grain dolomitic marble, Columbia Dark Vein
S2-143 United States California Marble Columbia gray, medium-grain dolomitic marble, Columbia Dark Vein
S2-144 United States California Marble Columbia light-blue, medium-grain dolomitic marble, Columbia Light Blue
13RA39 United States Pennsylvania Marble Columbia dark blue gray, fine grain
13La39 United States Pennsylvania Marble Columbia dark blue gray, fine grain
6RA2 United States Pennsylvania Sandstone Columbia blue-drab, fine grain, compact, argillaceous, Lower Silurian
14RB28 United States Tennessee Limestone Columbia light gray, medium grain, compact, fossiliferous
5RB40 United States South Carolina Granite Columbia gray, medium grain, biotite
6LB14 United States Pennsylvania Diabase Collins Station Lancaster Co. dark gray, fine grain, Mesozoic
12LA2 United States California Marble Colfax dark-gray, fine-grain, magnesian
10B United States Minnesota Granite Cold Springs pink, coarse grain, hornblende-biotite, Pearl Pink
6La22 United States Massachusetts Granite Cohasset pink, coarse grain, biotite
4LB13 United States Maryland Marble Cockeysville white, coarse grain
S2-163 United States Maryland Marble Cockeysville white, medium-grain dolomitic marble, Beaver Dam
14LB42 United States Maryland Marble Cockeysville white, medium grain, Lower Silurian, dolomite
14RB41 United States Maryland Marble Cockeysville brown, medium grain, dolomite, Mar Villa
13RA40 United States Maryland Marble Cockeysville white, medium grain, Lower Silurian, dolomite
13LA41 United States Maryland Marble Cockeysville white, medium grain, dolomite
4RB10 United States Maryland Marble Cockeysville white, medium grain, dolomite
12RA8 United States New York Limestone Cobleskill black, fine grain, compact, magnesian, Devonian
7RA31 United States Colorado Sandstone Coal Creek light gray, fine grain, porous
7RA28 United States Kentucky Sandstone Cloveport light brown, fine grain, porous, Lower carboniferous
8LB31 United States Kentucky Sandstone Cloveport buff, fine grain, porous, Lower carboniferous
6LB30 United States Kentucky Sandstone Cloveport buff, fine grain, porous, Lower carboniferous
13LB36 United States Utah Marble Clinton buff, brown-mottled, fine grain, fossiliferous
8LA36 United States Missouri Sandstone Clinton light gray, fine grain, porous, carboniferous
11LA15 United States Iowa Dolomite Clinton yellow, coarse grain, porous, ferruginous, Upper Silurian
5LB9 United States Massachusetts Granite Clinton dark gray, fine grain, biotite
10LB6 United States Missouri Limestone Clinton blue, fine grain, compact, argillaceous, carboniferous
10LB7 United States Missouri Limestone Clinton buff, fine grain, compact, argillaceous, carboniferous
8RB37 United States Missouri Sandstone Clinton buff, fine grain, compact, carboniferous
8Lb14 United States Utah Marble Clinton gray and brown variegated, coarsely fossiliferous calcite
11RB46 Canada Sandstone Cliffton, New Brunswick greenish-gray, medium grain, compact
11LB43 Canada Sandstone Cliffton, New Brunswick gray, medium grain, compact
12LA5 United States Tennessee Marble Cleveland pink, coarse, magnesian, Lower Silurian
11RA4 United States Tennessee Marble Cleveland pink, coarse, magnesian, Lower Silurian
8RB4 United States Tennessee Marble Cleveland pink, coarse, magnesian, Lower Silurian
14LB16 United States Iowa Dolomite Clemont buff, fine grain, porous, Upper Silurian
8RA42 United States Oregon Basalt Clackamas Station Clackamas Co gray, fine grain, porous
10RB2 Portugal Marble Cintra, Lisbon Dist. yellow, fine grain
11RB41 United States Tennessee Sandstone Church Mt. Granger Co. drab, fine grain, compact
13LB35 Spain Marble Chodes, Saragossa black and brown, coarse grainbreccia
14LB4 United States Illinois Dolomite Chicago dark-drab, fine grain, cellular, compact, Upper Silurian
12RA3 United States Illinois Dolomite Chicago light gray, fine grain, compact, Upper Silurian
14RB3 United States Illinois Dolomite Chicago gray, black-spotted, coarse grain, compact, bituminous
6RA26 United States Maine Granite Chesterville gray, fine grain, biotite
13RB40 United States Illinois Limestone Chester gray, dark-streaks, medium grain, compact, fossiliferous, Lower carboniferous
6RB18 United States Pennsylvania Gneiss Chester light gray, fine grain, garnet, biotite-muscovite
7LB17 United States Pennsylvania Gneiss Chester dark gray, fine grain, biotite
7Lb18 United States Pennsylvania Gneiss Chester gray, coarse grain, biotite
6RB9 United States Pennsylvania Serpentine Chester green, coarse grain, impure
8RA10 United States Illinois Limestone Chester light gray, finely fossiliferous, compact, Lower carboniferous, medium grain
9LA41 United States Illinois Sandstone Chester light gray, fine grain, porous, Lower carboniferous
9LA42 United States Illinois Sandstone Chester yellowish-brown, fine grain, porous, Lower carboniferous
9Lb5 United States Oklahoma Limestone Cherokee pale-buff, medium grain, semicrystalline, compact
12RB30 United States New York Marble Chazy gray, pink-spotted, medium grain, compact, fossiliferous, Lower Silurian
9LB24 United States Massachusetts Gneiss Charlton light gray, fine grain, muscovite-biotite
9La35 United States New Jersey Granite Charlotteburgh pink, coarse grain, biotite
8LB26 United States North Carolina Granite Charlotte gray, medium grain, biotite