Events

Join the OARS Team and community members from across the watershed for a day of impact. Gather at your chosen site along one of our three rivers with your OARS staff and board site leaders to pick up trash and debris, restoring habitats and supporting safe access to our waterways. Cleanup equipment will be provided...

Join OARS, Concord Free Public Library, and award-winning author and systems educator Dr. Linda Booth Sweeney for a lively book club conversation about how nature avoids waste and prevents pollution, free and open to all as part of OARS’ Egg Rock Readers book club. Drawing on renowned ecologist Thomas Crowther’s Nature’s Echo and Sweeney’s new children’s book, Do Bees Pee?,...

Friday, October 2, 2026, 7:30 pm at 51 Walden What do a masterfully crafted brew and a brilliant piece of music have in common? More than you might think. Presented by Keith Kirchoff, founder of Original Gravity and curator of the evening’s musical program, and Allen Quinn, brewer and co-owner of Armory’s Tomb, this interactive event...