An official website of the United States government
Here’s how you know
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.
Google Analytics Dashboard for Structural equation model of total phosphorus loads in the Red River of the North Basin, USA and Canada
Structural equation model of total phosphorus loads in the Red River of the North Basin, USA and Canada