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.
Recent posts are a good indicator that the Facebook page you’re viewing is current and maintained directly by the business or agency. The most recent post from the official USGS Facebook page was made only 19 hours prior to when the screenshot was taken.
Public Domain.
