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Chicago Ornithological Society and µÚÒ»³Ô¹Ï team up to offer a unique way experience the magic of migration! 

Learn how to help protect our river system by collecting water samples and gathering important data.

Come cheer for µÚÒ»³Ô¹Ï Runners at the 2024 Bank of America Chicago Marathon!

Learn how to help protect our river system by collecting water samples and gathering important data.

Creep, crawl, and have a ball this fall at the 3rd Annual Eerie Evening, a fundraiser for the McCormick Bridgehouse & Chicago River Museum. On October 18, join Friends and the Bridgehouse Museum for an all-inclusive Halloween party featuring local drinks from Two Brothers Brewery, entertainment, and chilling stories of Chicago’s past. 

Join us for the 20th Anniversary of the Chicago River Summit!