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.
This image shows how multiple Y-axes are displayed in the Land Product Characterization System.
Visit the Using the Land Product Characterization System page for more information.
Public Domain.
