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.
The flat area at the lowest part of an undrained desert basin, generally devoid of vegetation. May be a named feature. Symbol displayed as a polygon with a dark blue outline and brown dash marker fill.
Public Domain.
