Skip to main content
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.

Stone classification: Limestone

Wall Number Country State Source Sort descending Description
13LA27 United States Tennessee Nashville gray, medium grain, compact, fossiliferous, Lower Silurian, Capitol Quarry
9RB1 Portugal Nazareth, Leiria pink, fine grain, compact
9LA1 Portugal Nazareth, Leiria pinkish, fine grain, compact
13LB1 United States Virginia Near National Bridge nearly black, fine grain, compact, magnesian
11RA22 United States Missouri Neosho dark gray, medium grain, compact, fossiliferous
9RA5 United States Missouri New London dark gray, fine grain, compact, fossiliferous
27WE United States Florida New Port Richey light-buff, fine-grain, compact
S2-129 United States Florida New Port Richey light-buff, fine-grain, compact
9RB5 United States North Carolina Newbern buff, coarse grain, coarsely cellular, Eocene
13LA40 United States Ohio Newtonville light gray, fine grain, compact, Lower carboniferous
8RA4 United States Tennessee Nolensville Pike buff, fine grain, porous, Lower Silurian
10LA6 United States Tennessee Nolensville Pike brownish-gray, fine grain, compact, magnesian, fossiliferous, Lower Sil
12RA34 United States Indiana Oakalla light gray, fine grain, compact, fossiliferous, Lower carboniferous
14RB12 United States Indiana Oakdale light gray, fine grain, compact, Niagara
10LA7 United States New York Onondaga dark gray, medium grain, compact, fossiliferous, magnesian, Devonian
12RB23 United States Kansas Oswego dark gray, compact, coarse grain, fossiliferous
14LA38 Hungary Oszlopp buff and yellow, coarse grain, porous, fossiliferous
7LA3 Hungary Oszlopp buff-variegated, medium grain, compact, fossiliferous
9RA10 United States Iowa Ottumwa gray, medium grain, compact, Lower carboniferous
13C United States Indiana Owens Co. buff, coarse, cellular, oolitic, Old Gothic
12C United States Indiana Owens Co. buff, medium grain, cellular oolitic, Rustic Buff
14LB38 United States Pennsylvania Palmyra darak blue gray, fine grain, compact, Lower Silurian
11LB21 United States Missouri Paris gray, fine grain, compact, fossiliferous-bearing
13LB39 United States Pennsylvania Paxton Station Dauphin Co. dark blue gray, fine grain, compact, Lower Silurian
11RB25 United States Utah Payson drab, fine grain, compact
14RB21 United States Iowa Pella Station, Marion Co. light gray, fine grain, compact, Lower carboniferous
14R49 United States Missouri Phenix cut from the same block as 2L17, gray, medium grain, crystalline calcite, Napoleon Gray
14L49 United States Missouri Phenix cut from same block as 2L17, gray, medium grain, crystalline calcite, Napoleon Gray
2L17 United States Missouri Phenix gray, medium grain, crystalline calcite, Napoleon Gray
2R17 United States Missouri Phenix cut from same block as 2L17, gray, medium grain, crystalline calcite, Napoleon Gray
13RA44 United States Kentucky Pilot Knob light gray, medium grain, compact, oolitic, Sub-carboniferous
14LB47 United States Kentucky Pineville drab, fine grain, compact
14LB45 United States Kentucky Pineville dark gray, fine grain, compact, bituminous
14RB40 United States Ohio Piqua dark, mottled, fine grain, compact, Upper Silurian
13LA11 United States Ohio Piqua River light gray, fine grain, compact, magnesian
13RB26 United States Colorado Pitkin black, fine grain, compact
9LA4 United States Colorado Pitkin dark, white-mottled, fine grain, compact
11LA21 United States Missouri Pleasant Hill gray, fine grain, compact, carboniferous
12LA22 United States Missouri Pleasant Hill dark gray, medium grain, compact, carboniferous, fossiliferous
7La2 Portugal Porto Barrao, Coimbra drab and gray, fine grain, compact, argillaceous
12LB29 United States Wisconsin Prairie du Chien light buff, fine grain, compact
10RA10 United States New York Prescott gray, medium grain, compact, fossiliferous, magnesian, Lower Silurian
13RA41 United States Kentucky Princeton light gray, medium grain, compact, oolitic, Lower carboniferous
13RA42 United States Kentucky Princeton light drab, medium grain, compact, oolitic, Lower carboniferous
14Lb46 United States Kentucky Princeton light gray, medium grain, compact, oolitic, Lower carboniferous
8RA15 United States Indiana Putnamville gray, fine grain, compact, Lower carboniferous, siliceous
13LA21 United States Iowa Quarry, Marshall Co. gray, medium grain, compact, fossiliferous, Lower carboniferous
12RA4 United States Illinois Quincy light gray, coarse grain, compact, magnesian, fossiliferous
13LA42 United States Illinois Quincy yellow, fine grain, compact, Lower carboniferous
11LA5 United States Minnesota Red Wing light grab, fine grain, compact, magnesian, dendritic
13RA37 United States Pennsylvania Richland Station Lebanon Co. blue gray, fine grain, compact, crystalline, Lower Silurian
8LB17 United States Pennsylvania Richland Station Lebanon Co. blue gray, fine grain, compact, crystalline, Lower Silurian
10RB17 Spain Ricla, Saragossa blue-black, fine grain, compact
13LA35 Spain Ricla, Saragossa dark gray, fine grain, compact
11RA23 United States Nebraska Roca light gray, fine grain, compact, Permian
8RB7 United States Nebraska Roca light gray, fine grain, compact, Permian
8LB6 United States Nebraska Roca light gray, fine grain, compact, fossiliferous, Permian
12LA33 United States North Carolina Rock Point buff, coarse grain, compact, fossiliferous, Eocene
12LB23 United States Kansas Rock Twp. Butler Co. light grab, fine grain, compact
8RA11 United States Illinois Rockport light gray, medium grain, compact, fossiliferousbearing
13la47 United States Alabama Rockwood cut from the same block as 13RA47
16C United States Alabama Rockwood light buff, fine grain, porous, oolitic
13RA47 United States Alabama Rockwood light gray, fine grain, porous, oolitic
5EE United States Alabama Rockwood gray, medium-grain, oolitic
2c United States Alabama Rockwood light gray, fine grain, porous, oolitic
11La25 United States Tennessee Rogersville brown, gray-mottled, coarse grain, compact, Lower Silurian
14Lb27 United States Texas Round Rock light buff, fine grain, compact, cretaceous
8La17 United States Kentucky Russelville light gray, medium grain, compact, oolitic
12LB37 United States Kentucky Russelville dark-drab, fine grain, compact
14LB8 United States New York S. Glenn Falls nearly black, fine grain, compact, magnesian, Lower Silurian
13RB38 United States Illinois Sagetown light gray, fine grain, compact
4LB12 United States Indiana Salem light gray, medium grain, porous, Lower carboniferous, oolitic
4RB12 United States Indiana Salem light gray, medium grain, porous, Lower carboniferous, oolitic
12LB36 United States Indiana Salem dark, fine grain, compact, Lower carboniferous
12RA32 United States Indiana Salem light gray, medium grain, porous, Lower carboniferous, oolitic
13LA26 United States Texas San Saba light buff, fine grain, compact, cretaceous
8RA6 United States New York Sandy Hill dark gray, fine grain, compact, Lower Silurian
9RA14 Spain Saragossa Prov. light drab, fine grain, compact
14RB34 Spain Saragossa Prov. bluish-drab, fine grain, compact
14RA7 United States New York Saratoga black, fine grain, compact, Lower Silurian
12LB6 United States New York Schoharie black, fine grain, compact, magnesian, Upper Silurian
14LA44 Portugal Serra de Boa Viagem, Coimbra bluish-drab, fine grain, compact, argillaceous
7La9 United States Connecticut Shelterville drab, medium grain, compact
7RA11 United States Connecticut Shelterville dark gray, fine grain, compact
11RA29 United States Tennessee Sherwood Station light gray, fine grain, compact, oolitic
9RA11 United States Iowa Sigourney Station, Keokuk Co. light buff, fine grain, compact, dendritic, Lower carboniferous
13RA20 United States Iowa Sigourney Station, Keokuk Co. light gray, fine grain, compact, Lower carboniferous
4C United States Kansas Silverdale buff, medium grain, compact, calcite, Silurianverdale
10RA22 United States Kansas Smoky Hill Reservation white, fine grain, porous, chalky
12LA35 United States Indiana Spencer light gray, medium grain, porous, Lower carboniferous, bituminous
12RA33 United States Indiana Spencer light gray, fine grain, compact, Lower carboniferous
10La21 United States Missouri Springfield light gray, medium grain, compact, semicrystalline, Lower carboniferous
8LA16 United States Kentucky Springfield gray, fine grain, compact, coarsely fossiliferous
12RB8 United States New York Springfield Center dark-drab, fine grain, compact, magnesian, Devonian
14LA9 United States Pennsylvania Spruce Creek Huntingdon Co. black, fine grain, compact, magnesian, Lower Silurian
12LB21 United States Missouri St. Louis drab, fine grain, compact, finely fossiliferous, Lower carboniferous
11RA21 United States Missouri St. Louis light gray, medium grain, compact, semicrystalline, Lower carboniferous
9RA16 United States Minnesota St. Paul gray, fine grain, compact, fossiliferous, magnesian, Lower Silurian
14RB22 United States Iowa Stennett buff, fine grain, compact, fossiliferous, carboniferous
14RB46 United States Kentucky Stewart's Mill Clark Co. dark gray, fine grain, compact, carboniferous