Press release: The City of Woburn and the Mystic River Watershed Association are proud to announce the groundbreaking of the Horn Pond Fish Passage

The new passage for munnawhatteug at Horn Pond is inspired by the indigenous ingenuity of the fish weir. Learn more about the enduring legacy of the Massachusett Tribe and the indigenous history of Horn Pond and the Mystic River in this blog post by Thomas Green.

Learn about MyRWA’s top priorities in the “Mass Ready Act” Environmental Bond Bill

It’s getting HOT this summer. Explore how and why we’re addressing extreme heat in the watershed.

Learn about new cooling solutions built this spring thanks to the hard work of our Climate Leaders!

Join us in getting to know our 2026 summer fellows!

Press Release - Celebrating champions of the Mystic River at MyRWA’s Annual Champions Breakfast

Education Manager, Alice, recaps a school year full of education programs!

The Three Rivers Report Card Grades are in! This year, water quality in the Charles River stalls, while the Mystic and Neponset Rivers decline slightly.

On April 30th, the MWRA and the Cities of Cambridge and Somerville submitted their draft CSO Long Term Control Plan to Mass DEP and US EPA and for public comment.

Mystic River Watershed Association, in partnership with the Museum of Science, was selected as a recipient of the 2026 Boston Climate Leader Awards

Warmer weather is coming, which means big things are brewing along the Mystic Greenways!