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 USGS monitors streamflow and water quality at the Similkameen River Near Nighthawk, WA (12442500). Technicians measure streamflow using ADCPs - the small orange boat pictured.
Public Domain.
