The Bagaduce River is a remarkably productive tidal estuary located in Hancock County, Maine, flowing approximately 12 miles through the towns of Brooksville, Penobscot, and Castine before emptying into Penobscot Bay. Despite its relatively short length, the Bagaduce is considered one of Maine's most productive estuaries due to its unique configuration of narrow constrictions and broad coves. The river features distinctive reversing falls that not only create spectacular viewing opportunities but also limit tidal fluctuations upstream, creating protected conditions ideal for productive shellfisheries and diverse aquatic life. With over 1,000 acres of intertidal flats and 2,700 acres of waterfowl and wading bird habitat, the Bagaduce ecosystem supports a rich diversity of marine and freshwater species, making it a prime destination for anglers, wildlife enthusiasts, and naturalists alike.