Mill Brook Preserve Westbrook, Maine Royalty-Free Stock Image

Mill Brook Preserve features a 5-mile trail system first opened in 2016 on 130 acres of forested land along Mill Brook in Westbrook. Mill Brook is notable for the largest annual migration of alewife fish from Casco Bay to Highland Lake. The fish migration can be seen while hiking along the trail in late May and early June. This secluded and hilly forest valley is peaceful and feels remote while just minutes from Maine’s largest urban center.