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.
 Image Number D1983-1 |
Subsoil compaction plots before topsoil is added. The red/orange subsoil is a Greenbrier County (West Virginia) limestone-based soil. The lightest colored plots are Raleigh County (West Virginia) sandstone, and the darker subsoils are Raleigh County shale.
Photo by Susan Boyer.
