An official website of the United States government
Here's how you know
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 has been measuring streamflow since 1889. Explore how USGS streamgages have been supporting our Nation's changing water-resource needs and priorities for 130 years in an interactive data visualization story.
The USGS Streamgaging Program has been measuring our Nation’s rivers and streams since 1889. This animation is part of the interactive Gages Through The Ages data visualization story, which presents a visual history of 130 years of USGS streamgaging and how streamgages have supported our Nation’s changing water needs and priorities.