The USGS has several social media presences. The sites listed below are those that are considered official USGS presences. Any site found that is not listed is considered a non-USGS presence.
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.