The Herring River is a large estuary with a shoreline located in the Town of Harwich. The Herring River has a tidal reach that extends approximately 3 miles inland to West Reservoir. The River is fed by freshwater streams including the upper Herring River that extends through Hinckley Pond to Long Pond, and Coy Brook that extends east to Walker Pond. According to the Massachusetts Estuaries Project (MEP), the Herring River is functionally a wetland with salt marsh dominant along the river’s lower and mid reaches and brackish to freshwater in its upper marsh.