Cook Forest State Park is a 8,500-acre Pennsylvania state Park in Farmington Township, Clarion County, Barnett Township, Forest County and Barmett Township , Jefferson County, Pennsylvania. The park is a heavily wooded area of rolling hills and mountains along the Clarion River in northwestern Pennsylvania. Cook Forest State Park is known for some of America’s finest virgin white pine and hemlock timber stands and was once called the “Black Forest” due to the preponderance of evergreen tree coverage.
Cook Forest is a National Land Mark and was rated one of America’s top 50 state parks by National Geographic Traveler magazine. It was chosen by the Pennsylvania Department of Conservation and Natural Resources (DCNR) and its Bureau of Parks as one of “25 Must-See Pennsylvania State Parks”.