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.
New USGS deepwater tripod, called the free-ascending tripod, or FAT, suspended from a crane before being lowered into water. Some of the instruments mounted on the tripod have been labeled.
Public Domain.
