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 description: compact

Wall Number Country Sort descending State Classification Source
11LB25 Italy Sandstone Leghorn
9RA32 Italy Sandstone Leghorn
10LA39 Mexico Sandstone Guanajuato State
6RA37 Mexico Tuff Zacatecas State
10LA40 Mexico Tuff Zacatecas State
10LA41 Mexico Tuff Zacatecas State
6LB38 Mexico Tuff Morelos State
5RA37 Mexico Andesite Hildalgo State
10RA30 Mexico Sandstone Guanajuato State
9RB1 Portugal Limestone Nazareth, Leiria
7RA1 Portugal Limestone Covoes, Coimbra
8RB3 Portugal Limestone Lombas, Leiria
10LB2 Portugal Limestone Alvito, Coimbra
11LA36 Portugal Sandstone St. Miguel, Coimbra
7La2 Portugal Limestone Porto Barrao, Coimbra
9LA1 Portugal Limestone Nazareth, Leiria
9RB42 Portugal Sandstone St. Miguel, Coimbra
8RA2 Portugal Limestone Freguesias, Coimbra
8RA3 Portugal Limestone Janianes, Coimbra
14LA44 Portugal Limestone Serra de Boa Viagem, Coimbra
14LA45 Portugal Limestone Ega, Coimbra
14LA46 Portugal Limestone Janianes, Coimbra
14LA47 Portugal Limestone Ilhastro, Coimbra
5LA12 Scotland Sandstone Anan
13LA35 Spain Limestone Ricla, Saragossa
14LB35 Spain Limestone Morata, Saragossa
9LA14 Spain Limestone Murcia, Murcia
14RB34 Spain Limestone Saragossa Prov.
9RA14 Spain Limestone Saragossa Prov.
14RB35 Spain Limestone Calatayud, Saragossa
10RB17 Spain Limestone Ricla, Saragossa
9RA37 Spain Sandstone Murcia
9RA38 Spain tuff Alamazanon
11LB8 United States Kansas Dolomite Topeka
12LB10 United States Ohio Dolomite New Paris
13LA16 United States Iowa Limestone Fort Dodge
13RB26 United States Colorado Limestone Pitkin
14RA23 United States Iowa Limestone Mason City
6La17 United States Pennsylvania Sandstone Skinner's Eddy
7LB28 United States Kentucky Sandstone Taylor Co.
S1-49 United States Tennessee Sandstone Crossville
10RB6 United States Missouri Limestone Bear Creek Marion Co.
11RB35 United States Montana Sandstone Great Falls
12RA7 United States New York Limestone Crown Point
13LB39 United States Pennsylvania Limestone Paxton Station Dauphin Co.
14LA6 United States Wisconsin Dolomite Taycheedah Twp. Fon du Lac Co.
14RB7 United States New York Limestone Howe's Cave
8LA25 United States North Carolina Sandstone Durham
8RA43 United States Montana Sandstone Columbus
9RA40 United States Wyoming Diorite Raw Hide Buttes
11RA1 United States Indiana Dolomite Wabash
12LB12 United States Kentucky Dolomite Louisville
13LA19 United States Iowa Limestone Davenport
13RB27 United States Colorado Limestone Morrison
14RA24 United States Iowa Limestone Bedford
6LA18 United States Pennsylvania Sandstone Queens Run Clinton Co.
7Lb30 United States Texas Sandstone Pecos
S1-50 United States Pennsylvania Sandstone Wyoming
10RB7 United States Missouri Limestone Hannibal
11RB37 United States New Jersey Sandstone Woodsville
12RA8 United States New York Limestone Cobleskill
13LB42 United States Illinois Limestone Iuka
14LA9 United States Pennsylvania Limestone Spruce Creek Huntingdon Co.
14RB8 United States Minnesota Limestone Minneapolis
6RA42 United States New Jersey Sandstone Martinville
8LA28 United States New York Sandstone W. Hurley
8RA45 United States Washington Sandstone Bellingham
9RA5 United States Missouri Limestone New London
11RA10 United States Ohio Dolomite Milton Twp. Woods Co.
12LB15 United States Missouri Limestone Hannibal
13LA2 United States Illinois Dolomite Lemont
13RB35 United States New York Limestone Williamsville
14RA27 United States Tennessee Limestone Nashville
6LA28 United States New York Sandstone Olean
7LB31 United States Colorado Sandstone Fort Collins
9LA9 United States Iowa Limestone Burlington
S2-129 United States Florida Limestone New Port Richey
11La1 United States Indiana Dolomite St. Paul
11RB38 United States New Jersey Sandstone Princetown
12RA9 United States Minnesota Dolomite Kasota
13LB43 United States Kentucky Limestone Litchfield
14LB1 United States Indiana Dolomite Montpelier
14RB9 United States Pennsylvania Dolomite Chambersburg
6RA47 United States Wisconsin Quartzite Waterloo
8LA29 United States New York Sandstone Steeny Kill
8RA47 United States New Mexico Sandstone Las Vegas
8RA6 United States New York Limestone Sandy Hill
9RB10 United States Iowa Limestone Davenport
10LA49 United States Michigan Quartzite Vulcan
11RA11 United States Missouri Dolomite Sedalia
12LB16 United States Iowa Dolomite Cedar Falls
13LA20 United States Iowa Coral Iowa City
13RB36 United States Pennsylvania Limestone N. Annville
14RA28 United States Tennessee Limestone Carter's Station Creek
6LA29 United States New York Sandstone High Woods
7LB35 United States Nevada Andesite Reno
9LB10 United States Iowa Limestone Bristow
S2-6 United States Washington Sandstone Wilkeson
11LA11 United States Kentucky Dolomite Bardstown
11RB4 United States Wisconsin Dolomite Buffalo Co.