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
S2-94 United States Maine Granite North Jay light-gray, fine-grain, biotite
10LA33 United States Maine Granite Vinal Haven gray, fine grain, biotite
10Lb31 United States Maine Granite W. Sullivan gray, medium grain, biotite
10ra43 United States Wyoming Granite Sherman Red, fine grain biotite
10RB28 United States Maine Granite Somesville Mt. Desert gray, medium grain, biotite
11B United States New Hampshire Granite Concord light gray, medium grain, muscovite-biotite, Concord Gray
11RB39 United States Michigan Granite Vulcan Red, fine grain, biotite
12B United States Maine Granite Mt. Desert pink, medium to coarse, biotite, Somes Sound
5LA20 United States Massachusetts Granite Bay View Cape Ann. brownish-black, medium grain, biotite
5LB37 Unknown Granite
5RA23 United States North Carolina Granite Rockingham greenish-gray, coarse grain, biotite
5RA38 Unknown Granite
5RB10 United States Massachusetts Granite Quincy Adams pink, fine grain, biotite
5RB25 United States North Carolina Granite Louisburg light gray, fine grain, biotite
6Lb37 United States Connecticut Granite Branchville gray, coarse grain, biotite
6RB22 United States Massachusetts Granite Rockport dark gray, coarse grain, hornblende
7RA24 United States Maine Granite Crotch Isl. mauve and white, coarse grain, Porphyritic, biotite
8LB26 United States North Carolina Granite Charlotte gray, medium grain, biotite
8RB26 United States North Carolina Granite Hillsboro pink, fine grain, biotite
S1-15 United States Massachusetts Granite Quincy dark-gray, coarse-grain hornblende
S2-51 United States Maine Granite Frankfort gray, coarse-gray, biotite, Mt. Waldo
S2-80 United States New Hampshire Granite Concord gray, medium-grain, muscovite-biotite
S2-95 United States North Carolina Granite Mt. Airy light-gray, medium-grain, biotite, 1- to 3-in. thickness
10LA34 United States Maine Granite St. Thomaston gray, fine grain, biotite
10RB43 United States Montana Granite Butte dark greenish-gray, medium grain, hornblende
13B United States Georgia Granite Elberton blue gray, medium grain, biotite, Elberton Blue Diamond
5B United States Maine Granite North Jay light gray, fine grain, biotite-muscovite, North Jay
5LB23 United States North Carolina Granite Davidson College gray, coarse grain, biotite
5RA24 United States North Carolina Granite Rockingham pinkish-gray, coarse grain, prophyritic biotite
5RB11 United States Massachusetts Granite Quincy dark-red, coarse grain, hornblende
5RB40 United States South Carolina Granite Columbia gray, medium grain, biotite
6La22 United States Massachusetts Granite Cohasset pink, coarse grain, biotite
6LA37 United States Connecticut Granite Groton gray, fine grain, biotite
6RA22 United States Massachusetts Granite W. Quincy dark gray, coarse grain, hornblende
6RB23 United States North Carolina Granite Mt. Airy yellowish-gray, medium grain, biotite
7LB38 United States Maryland Granite Woodstock gray, medium grain, biotite
7RA25 United States Maine Granite Canaan dark gray, coarse grain, biotite
7RB29 United States Texas Granite Burnet Red, fine grain, biotite
8LB27 United States Maine Granite St. George dark gray, fine grain, biotite
8RB27 United States Maine Granite Dedham gray and white, coarse grain, Porphyritic, bitotite
9La23 United States Massachusetts Granite Peabody gray, coarse grain, hornblende
S1-16 United States Maine Granite Unknown pink, med-grain, biotite
S1-30 United States Massachusetts Granite Milford pink, coarse-grain, biotite
S2-52 United States Minnesota Granite Sauk Rapids pinkish-gray, corase-grain, biotite
S2-67 United States North Carolina Granite Salisbury pale pink, medium grain, biotite
S2-81 United States Massachusetts Granite Quincy dark-gray, coarse-grain, hornblende
S2-96 United States North Carolina Granite Mt. Airy light-gray, medium-grain, biotite, 1- to 3-in. thickness
10B United States Minnesota Granite Cold Springs pink, coarse grain, hornblende-biotite, Pearl Pink
10LB48 United States Rhode Island Granite West Greenwich light pink, coarse grain, biotite
10RA45 United States Vermont Granite Woodbury gray, medium grain, biotite
10RB44 United States New Hampshire Granite Durham gray, coarse grain, biotite
20WE United States Indiana Limestone Bedford buff, medium-grain, oolitic
28WE United States Indiana Limestone Bedford gray, medium-grain, oolitic
4Lb11 United States Tennessee Limestone Knoxville pinkish-gray, medium grain, crystalline, compact, Lower Silurian
5C United States Indiana Limestone Lawrence Co. gray and buff, medium grain, porous, oolitic, variegated
7La2 Portugal Limestone Porto Barrao, Coimbra drab and gray, fine grain, compact, argillaceous
7La9 United States Connecticut Limestone Shelterville drab, medium grain, compact
8LA12 United States Illinois Limestone Kinderhook light gray, medium grain, compact, semicrystalline, carboniferous
8RA12 United States Illinois Limestone Jonesborough light gray, medium grain, compact, oolitic
8RB13 United States Texas Limestone Burnet drab, fine grain, compact
9LA1 Portugal Limestone Nazareth, Leiria pinkish, fine grain, compact
9LB11 United States Iowa Limestone Durham Sta. Marion Co. light buff, medium grain, compact, bituminous, Lower carboniferous
9RA13 United States Kansas Limestone Lane gray, medium grain, compact, fossiliferous
10C United States Indiana Limestone Bloomington gray, medium-grain, porous, oolitic, Select Gray
10La21 United States Missouri Limestone Springfield light gray, medium grain, compact, semicrystalline, Lower carboniferous
10LB2 Portugal Limestone Alvito, Coimbra light yellow, medium grain, compact
11RA19 United States Iowa Limestone Montour buff, medium grain, compact, oolitic, Lower carboniferous
12LA4 United States Texas Limestone Austin light buff, fine grain, compact, magnesian, cretaceous
12LB33 Unknown Limestone
13EE United States Indiana Limestone Bedford buff, medium-grain, oolitic, Grade A Buff
13LB1 United States Virginia Limestone Near National Bridge nearly black, fine grain, compact, magnesian
13LB39 United States Pennsylvania Limestone Paxton Station Dauphin Co. dark blue gray, fine grain, compact, Lower Silurian
13RA24 United States Kansas Limestone Douglass light gray, medium grain, porous, soft, fossiliferous, Permian
13RB25 United States North Carolina Limestone Warm Springs nearly black, fine grain, compact
14LA20 United States Iowa Limestone Mt. Pleasant drab, fine grain, compact, siliceous, Lower carboniferous
14LB20 United States Iowa Limestone Knoxville gray, medium grain, compact, siliceous, Lower carboniferous
14LB35 Spain Limestone Morata, Saragossa pinkish, fine grain, compact
14RA48 United States Texas Limestone Cedar Park cut from same block as 14LA48, light buff, fine grain, porous, oolitic, Cordova Cream
14RB48 United States Missouri Limestone Carthage cut from same block as 14LB48, gray, medium grain, crystalline calcite, Ozark Travernelle
29EE United States Indiana Limestone Bedford buff, medium-grain, oolitic, Grade A
2R17 United States Missouri Limestone Phenix cut from same block as 2L17, gray, medium grain, crystalline calcite, Napoleon Gray
3C United States Texas Limestone Cedar Park light buff, fine grain, porous, oolitic, Cordova Cream
4LB12 United States Indiana Limestone Salem light gray, medium grain, porous, Lower carboniferous, oolitic
5EE United States Alabama Limestone Rockwood gray, medium-grain, oolitic
7RA11 United States Connecticut Limestone Shelterville dark gray, fine grain, compact
8LA13 United States Indiana Limestone Fort Ritner light gray, medium grain, compact, Lower carboniferous, oolitic
8RA13 United States Indiana Limestone Bedford light gray, medium grain, compact, oolitic, Lower carboniferous
9La10 United States Iowa Limestone Keosauque Station light gray, fine grain, compact, Lower carboniferous
9LA4 United States Colorado Limestone Pitkin dark, white-mottled, fine grain, compact
9LB12 United States Iowa Limestone Earlham gray, fine grain, compact, fossiliferous, carboniferous
9RA14 Spain Limestone Saragossa Prov. light drab, fine grain, compact
9RB5 United States North Carolina Limestone Newbern buff, coarse grain, coarsely cellular, Eocene
S2-4 United States Indiana Limestone Bedford gray, medium-grain, oolitic
10LA6 United States Tennessee Limestone Nolensville Pike brownish-gray, fine grain, compact, magnesian, fossiliferous, Lower Sil
10RB17 Spain Limestone Ricla, Saragossa blue-black, fine grain, compact
11La25 United States Tennessee Limestone Rogersville brown, gray-mottled, coarse grain, compact, Lower Silurian
11LA4 United States New York Limestone Union Springs black, fine grain, compact, magnesian, Devonian
12RA11 United States Kentucky Limestone Lagrange light gray, fine grain, compact, magnesian, Upper Silurian
12RA7 United States New York Limestone Crown Point nearly black, fine grain, compact, magnesian, Upper Silurian
12RB21 United States Missouri Limestone Glencoe buff, coarse grain, compact, fossiliferous, Lower carboniferous