Osbornedale State Park is a public recreation area occupying 417 acres (169 ha) on the east bank of the Housatonic River primarily in the town of Derby, Connecticut, with a small portion in Ansonia. The state park includes the historic Osborne Homestead, the Kellogg Environmental Center, and an extensive system of hiking trails. The park is managed by the Connecticut Department of Energy and Environmental Protection. (Ref: https://en.wikipedia.org/wiki/Osbornedale_State_Park)