Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

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: water-blue

Wall Number Sort descending Country State Classification Source
13LA9 United States Connecticut Marble E. Canaan
14RA11 United States Connecticut Marble E. Canaan
7La14 United States Pennsylvania Limestone Wernersville
9LB15 United States Massachusetts Marble Stockbridge