Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Stone description: dark-spotted

Wall Number Sort descending Country State Classification Source
10Lb36 United States Kansas Sandstone Pawnee
11LB31 United States Kansas Sandstone Pawnee
12LA10 United States Ohio Dolomite Euphemia
14Lb40 United States Pennsylvania Marble Bridgeport
14RB2 United States Vermont Marble Pittsford
7LB23 United States North Carolina Quartz Charlotte
9LB1 Portugal Marble Figueira Zameirao, Coimbra