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
S2-25 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
10RB20 United States Pennsylvania Argillite (Slate) Slatington blue-black, fine grain, roofing and tile slate
13RA39 United States Pennsylvania Marble Columbia dark blue gray, fine grain
5RA8 United States Ohio Sandstone Greenfield gray, dark-streaked, fine grain, compact, Lower carboniferous
8LB33 United States Colorado Sandstone Canon City light olive, fine grain, porous
S2-83 United States Georgia Granite Elberton
14B United States Connecticut Granite Stony Creek pink and buff, coarse, biotite gneiss, Mt Coral
6La19 United States Pennsylvania Quartz Pine Grove dull-red, coarse grainy, quartz porphyry
8RA47 United States New Mexico Sandstone Las Vegas brownish-purple, fine grain, compact
11Lq United States Tennessee Marble Knoxville gray, medium grain, calcite, Gray Knox Quaker Gray
14LB20 United States Iowa Limestone Knoxville gray, medium grain, compact, siliceous, Lower carboniferous
6LB34 United States Minnesota Granite E. St. Cloud gray, fine grain, hornblende
11RB31 United States Virginia Diabase Leesburg dark gray, fine grain, Mesozoic diabase
6RA5 United States Pennsylvania Sandstone Mauch Chunk dark gray, fine grain, compact
9LB31 United States New York Sandstone Watkins Glen blue gray, fine grain, compact, Devonian
12LA9 United States Pennsylvania Dolomite Orbisonia nearly black, fine grain, compact, Lower Silurian
14RB48 United States Missouri Limestone Carthage cut from same block as 14LB48, gray, medium grain, crystalline calcite, Ozark Travernelle
12RA3 United States Illinois Dolomite Chicago light gray, fine grain, compact, Upper Silurian
20WE United States Indiana Limestone Bedford buff, medium-grain, oolitic
2L13 United States Connecticut Marble E. Canaan white, brown-spotted, coarse grain, dolomite
6RB3 United States Pennsylvania Sandstone Kiasola Station Beaver Co. gray, coarse grain, porous, carboniferous
3R15 United States Maryland Dolomite Baltimore cut from same block as 3L15, white, fine grain
7LA40 United States New Jersey Sandstone Orange Mt. purplish-brown, medium grain, porous, Triassic
9RB30 United States New York Sandstone Stony Hollow Ulster Co. dark blue, fine grain, compact, Devonian
10LA11 United States Ohio Dolomite Lima dark, fine grain, porous, bituminous, Upper Silurian
12RB20 United States Vermont Marble W. Rutland cut from same block as 12LB20, gray, black-streaked, Lower Silurian, calcite
4RA16 United States Vermont Marble W. Rutland cut from same block as 13RB20, grayish-white, dark-veined, Lower Silurian, calcite
7RA16 United States Pennsylvania Limestone Wernersville dark blue gray, fine grain, compact, crystalline, Lower Silurian
S1-47 United States Tennessee Sandstone Crossville Red, fine-grain, compact, Crab Orchard Stone
10LB24 United States Massachusetts Granite Framingham light pink, coarse grain, biotite
13La38 United States Pennsylvania Marble West Gove Chester Co. white, marked with gray, medium grain, dolomitic
5LA5 United States Ohio Sandstone Piketon brown, fine grain, porous, Lower Carg, freestone
7RB35 United States Massachusetts Conglomerate Dorchester vari-colored, compact, siliceous, Puddingstone
S2-149 United States Georgia Marble Tate light-gray, coarse-grain calcite marble, Kennesaw
10RA36 United States New Hampshire Granite Fitzwilliams gray, fine grain, biotite-muscovite
13RA1 United States Vermont Marble New Haven white, dark-veined, fine grain, magnesian, Lower Silurian
5RA20 United States Massachusetts Granite Wyoma gray, coarse grain, hornblende
8La47 United States New Mexico Sandstone Las Vegas pink, fine grain, porous, sandstone
S2-54 United States North Carolina Granite Mt. Airy Mt Airy Granite, veneer
10RB5 United States Colorado Marble Canon City Cut from same block as 10LB5, buff and pink, fine grain, calcite, travertine
13RB25 United States North Carolina Limestone Warm Springs nearly black, fine grain, compact
8RA18 United States Kentucky Limestone Lebanon dark gray, fne gr, compact, fossiliferous
11LB21 United States Missouri Limestone Paris gray, fine grain, compact, fossiliferous-bearing
6LA5 United States Pennsylvania Sandstone Scranton gray, medium grain, porous, Sub-carboniferous
8RB33 United States Colorado Sandstone Fort Collins brick-red, porous, fine grain
11RA38 United States Tennessee Sandstone Ducktown Red, coarse grain, porous, ferruginous
14LB6 United States New York Marble Tuckahoe white, coarse grain, Archaean, dolomite
6RA19 United States Pennsylvania Quartzite Jacksonwald light gray, fine grain, compact
9LA44 United States Florida Sandstone Suwannee River nearly white, porous, coarsely vesicular, phosphatic
12La13 United States Kentucky Dolomite Lincoln Co. light drab, fine grain, compact, semicrystalline
14RB19 United States Vermont Marble Pittsford white, fine grain, Lower Silurian, calcite
12LB38 United States Alabama Marble Gantt's Quarry white, dark parallel veins, fine grain calcite
1L13 United States Colorado Marble Marble white, yellow-veined, medium grain, calcite, Golden Vein Yule
2WE United States Texas Limestone Cedar Park light-buff, fine-grain, porous, oolitic, Cordova Cream
7LA10 United States Florida Limestone Key West nearly white, porous, friable, oolitic
9RA43 United States Idaho Sandstone Boise buff-colored, coarse grain, porous
4La18 United States Vermont Marble Southerland Falls cut from same block as 10LB10, white, gray-spotted, Lower Silurian, calcite
S1-18 United States Unknown Granite Unknown dark-gray, medium-grain, biotite
13EE United States Indiana Limestone Bedford buff, medium-grain, oolitic, Grade A Buff
5LA18 United States Ohio Sandstone Plymouth light gray, fine grain, porous, Lower carboniferous
S2-12 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
4LA19 United States Florida Coquina St. Augustine light buff, coarse, highly porous, calcareous, shell-stone
7Lb30 United States Texas Sandstone Pecos Red, fine grain, compact
S1-19 United States Unknown Granite Unknown dark-gray, fine-grain, biotite
13La1 United States Vermont Limestone Isle La Motte dark gray, fine grain, fossiliferous, magnesian
5LA19 United States Ohio Sandstone Mt. Gilead lightgray, fine grain, porous, Lower carboniferous
S2-120 United States Tennessee Sandstone Crossville Crab Orchanrd Stone, variegated colors, some on bed and some on edge, in 3- to 6 in. thicknesses
10lq United States Arkansas Marble Batesville Motteled gray and white, fine grain, calcite
5LB35 United States Connecticut Gneiss Lyme gray, coarse grain, biotite
8La19 United States Pennsylvania Diabase Goldsboro gray, fine grain
S2-26 United States Maryland Schist Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
10RB21 United States Pennsylvania Argillite (Slate) Slatington blue-black, fine grain, roofing and tile slate
13RA4 United States Wisconsin Dolomite Milwaukee drab, fine grain, compact, Silurian
5RA9 United States Ohio Sandstone Belleville brown, coarse grain, porous, Lower carboniferous
8LB34 United States Minnesota Sandstone Mendota bright-yellow, medium grain, porous, Lower Silurian
S2-84 United States Indiana Limestone Bedford buff, medium-grain, oolitic
11LA3 United States Wisconsin Dolomite Waukesha drab, fine grain, compact, Upper Silurian
14C United States Indiana Limestone Bedford gray, coarse, porous, oolitic, Grade B
8RA5 United States Tennessee Marble Knoxville pink, medium grain, Lower Silurian
11RA1 United States Indiana Dolomite Wabash light yellowish, fine grain, compact, Niagara
14LB21 United States Iowa Limestone Dudley Sta. Wapello Co. light buff, fine grain, compact, oolitic, Lower carboniferous
6LB35 United States Minnesota Diabase Two Harbor Bay nearly black, fine grain
9LA16 United States Minnesota Limestone Minneapolis mottled gray, fine grain, compact
11RB32 United States Virginia Granite Namozine Dist. greenish-gray, fine grain, biotite
6RA6 United States Pennsylvania Sandstone Farrandsville buff, fine grain, porous, Devonian
9LB32 United States New York Quartzite Fort Ann buff, fine grain, compact
12LB1 United States Indiana Dolomite Eaton dark, mottled, coarse grain, compact, Niagara
14RB5 United States Wisconsin Dolomite Eden light drab, fine grain, Upper Silurian
12RA30 United States Illinois Limestone Joliet cut from same block as 12LA31, light gray, fine grain, compact, Lower Silurian
21EE United States New York Sandstone Portageville bluish-gray, fine-grain, compact, Genesee Valley Bluestone
2L14 United States Vermont Marble W. Rutland white, green-clouded, fine grain, calcite, Jade Building Grade, Silurianvert Memorial Grade
6RB30 United States California Sandstone Alameda light brown, coarse grain, porous
3R16 United States Vermont Marble Isle LaMotte cut from the same block as 3L16, nearly black, fine grain, fossiliferous, dolomitic
7LA41 United States Montana Sandstone Columbus drab-gray?, fine grain, compact, cretaceous
10la12 United States Ohio Limestone Columbus dark, fine grain, compact, magnesian, Devonian
12RB21 United States Missouri Limestone Glencoe buff, coarse grain, compact, fossiliferous, Lower carboniferous
4RA17 United States Vermont Marble W. Rutland cut from same block as 4La17, gray, black-veined, fine grain, Lower Silurian, calcite
7RA17 United States Pennsylvania Argillite (Slate) Slatedale blue-black, fine grain, roofing and tile slate
S1-48 United States Pennsylvania Sandstone Wyoming dark-gray, fine-grain, compact
10LB25 United States Massachusetts Gneiss Northfield gray, fine grain, biotite