Beginning on 1/23/2026, tide stage elevation data will only be found at Charles R DS of New Charles R Dam at Boston, MA - USGS-422206071033901
Skip to main content
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.
Monitoring location Mystic R at Amelia Earhart Dam NR Somerville, MA - USGS-01103050
Important for you to know:
- How are we doing? We want to hear from you. Take our quick survey to tell us what you think.
