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: Lower carboniferous

Wall Number Country State Classification Sort descending Source
11LB20 United States Iowa Limestone Iowa Falls
13RB40 United States Illinois Limestone Chester
12RB21 United States Missouri Limestone Glencoe
13RB42 United States Indiana Limestone Bedford
14RB20 United States Iowa Limestone Winterset
11RA19 United States Iowa Limestone Montour
12RB4 United States Illinois Limestone Breese
13RB45 United States Kentucky Limestone Dennis
14RB21 United States Iowa Limestone Pella Station, Marion Co.
9La10 United States Iowa Limestone Keosauque Station
9RA9 United States Iowa Limestone Tracey Station, Marion Co.
11RA21 United States Missouri Limestone St. Louis
14RB23 United States Iowa Limestone Montour
9RB11 United States Iowa Limestone Givin
13LA21 United States Iowa Limestone Quarry, Marshall Co.
14LA20 United States Iowa Limestone Mt. Pleasant
4LB12 United States Indiana Limestone Salem
8LA13 United States Indiana Limestone Fort Ritner
9RB13 United States Iowa Limestone Conrad
12LA35 United States Indiana Limestone Spencer
13LA40 United States Ohio Limestone Newtonville
14LB20 United States Iowa Limestone Knoxville
4RB12 United States Indiana Limestone Salem
8LA15 United States Indiana Limestone Greenscastle
13LA42 United States Illinois Limestone Quincy
14LB21 United States Iowa Limestone Dudley Sta. Wapello Co.
13LA43 United States Kentucky Limestone Grahampton
14LB22 United States Iowa Limestone Dudley Sta. Wapello Co.
12LB21 United States Missouri Limestone St. Louis
13LB20 United States Iowa Limestone Mt. Pleasant
14Lb46 United States Kentucky Limestone Princeton
12LB36 United States Indiana Limestone Salem
13LB45 United States Kentucky Limestone Green Co.
9LB11 United States Iowa Limestone Durham Sta. Marion Co.
10LA20 United States Iowa Limestone Iowa Falls
12RA1 United States Indiana Limestone Bedford
8RA10 United States Illinois Limestone Chester
9LB14 United States Iowa Limestone Fairfield
10La21 United States Missouri Limestone Springfield
12RA32 United States Indiana Limestone Salem
14RA21 United States Iowa Limestone Washington
8RA13 United States Indiana Limestone Bedford
12RA33 United States Indiana Limestone Spencer
13RA20 United States Iowa Limestone Sigourney Station, Keokuk Co.
14RA22 United States Iowa Limestone Winterset
8RA15 United States Indiana Limestone Putnamville
12RA34 United States Indiana Limestone Oakalla
13RA41 United States Kentucky Limestone Princeton
8RA16 United States Indiana Limestone Ellettsville
12RA36 United States Kentucky Limestone Garrett
13RA42 United States Kentucky Limestone Princeton
14RB14 United States Iowa Limestone Le-Grand
7RA14 United States Pennsylvania Limestone Connellsville
9RA10 United States Iowa Limestone Ottumwa
13RB39 United States Illinois Limestone Columbia
9RA11 United States Iowa Limestone Sigourney Station, Keokuk Co.
5LA9 United States Ohio Sandstone Piketon
5RA9 United States Ohio Sandstone Belleville
7RA28 United States Kentucky Sandstone Cloveport
8RB20 United States Ohio Sandstone Middleburg Twp. Cuyahoga Co.
9RA21 United States Ohio Sandstone Monclava
5LB1 United States Ohio Sandstone N. Hampton
5RB1 United States Ohio Sandstone Amherst
7RB19 United States Ohio Sandstone Amherst
8RB21 United States Ohio Sandstone Amherst
9RA22 United States Ohio Sandstone Newark
5LB2 United States Ohio Sandstone Newburgh
5RB3 United States Ohio Sandstone Bedford
7RB20 United States Ohio Sandstone Independence
5LB5 United States Ohio Sandstone Newburgh
5RB5 United States Ohio Sandstone Brownhelm
7RB27 United States Kentucky Sandstone Marion
9LA21 United States Ohio Sandstone Lancaster
5LB6 United States Ohio Sandstone Newark
5RB8 United States Ohio Sandstone Independence
9LA22 United States Ohio Sandstone Logan
5LB7 United States Ohio Sandstone N. Bloomfield
6LA20 United States Ohio Sandstone Newark
9LA39 United States Indiana Sandstone French Lick Twp.
9RB20 United States Ohio Sandstone Harmer
5LA1 United States Ohio Sandstone Mt. Gilead
5RA10 United States Ohio Sandstone Berea
6La8 United States Pennsylvania Sandstone Altoona
8LA20 United States Ohio Sandstone Portsmouth
9LA40 United States Illinois Sandstone Pinckneyville
9RB39 United States Indiana Sandstone Paoli
5LA10 United States Ohio Sandstone Sunbury
5RA11 United States Ohio Sandstone Lithopolis
6LB20 United States Ohio Sandstone Sunbury
8LA31 United States Kentucky Sandstone Johnson Co.
9LA41 United States Illinois Sandstone Chester
5LA16 United States Ohio Sandstone Windsor
5RA12 United States Ohio Sandstone Euclid
6LB30 United States Kentucky Sandstone Cloveport
8LB20 United States Ohio Sandstone Berea
9LA42 United States Illinois Sandstone Chester
5La17 United States Ohio Sandstone Wooster
5RA16 United States Ohio Sandstone Leesville
6RA20 United States Ohio Sandstone Lancaster
8LB31 United States Kentucky Sandstone Cloveport