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.
A USGS scientist wearing a safety vest and earmuffs conducts field research at Summer Lake from an airboat. Airboats help USGS navigate shallow, muddy lakes and other challenging environments during critical studies.
Public Domain.
