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 ascending Description
S2-84 United States Indiana Bedford buff, medium-grain, oolitic
10LA19 United States Iowa Bedford light buff, coarse grain, compact, carboniferous
S2-85 United States Indiana Bedford buff, med-grain, oolitic
14C United States Indiana Bedford gray, coarse, porous, oolitic, Grade B
33WE United States Indiana Bedford buff, medium-grain, oolitic
S3-1 United States Indiana Bedford gray, medium grain, oolitic, Grade B
14EE United States Indiana Bedford gray, medium-grain, oolitic
S3-2 United States Indiana Bedford gray, medium grain, oolitic
10RB6 United States Missouri Bear Creek Marion Co. gray, coarse grain, compact, encrinitial, semicrystalline
S3-7 United States Arkansas Batesville gray, medium-grain crystalline, Batesville
11RB22 United States Arkansas Batesville grayish-white, fine grain, compact
26EE United States Arkansas Batesville gray, medium-grain crystalline
32WE United States Arkansas Batesville gray, medium-grain, crystalline
S3-10 United States Arkansas Batesville gray, medium-grain crystalline, Batesville
9LA5 United States Missouri Barrett's Station light gray, coarse grain, porous, fossiliferous
8RA14 United States Indiana Avoca light gray, fine grain, compact, oolitic
13RB23 United States Texas Austin light gray, fine grain, compact
13Lb26 United States Texas Austin gray-buff, coarsely fossiliferous, compact, cretaceous
11RB3 United States Texas Austin light buff, fine grain, compact, magnesian, cretaceous
12LA4 United States Texas Austin light buff, fine grain, compact, magnesian, cretaceous
13RA23 United States Kansas Augusta buff, coarse grain, porous, Permian, Fusulina
11RA26 United States Kansas Atchison drab-gray, medium grain, compact, fossiliferous, carboniferous
10RA24 United States Kansas Armstrong buff, medium grain, porous, fossiliferous
13RA45 United States Kentucky Anchorage light drab, fine grain, compact
14RB6 United States New York Amsterdam nearly black, fine grain, compact, magnesian, Lower Silurian
13LB22 United States Missouri Amazonia light brown, fine grain, compact, finely fossiliferous
10LB2 Portugal Alvito, Coimbra light yellow, medium grain, compact
6C United States Indiana ? gray, medium grain, porous, oolitic, Select Gray
12LB33 Unknown