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: brown-banded

Wall Number Sort descending Country State Classification Source
10LA39 Mexico Sandstone Guanajuato State
10LA40 Mexico Tuff Zacatecas State
10RA30 Mexico Sandstone Guanajuato State
5LA4 United States Ohio Sandstone Norwalk
6LA6 United States Pennsylvania Sandstone Scottsdale
9RB18 United States Pennsylvania Sandstone Scottsdale