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.
This is the 3-linem black text with white background "The National Map" logo from the NGP Communications: Branding Artwork Library | At the Core (usgs.gov).
Public Domain.
Logo is used on websites, signature blocks, documents.