Bald Eagle State Park is a 5,900-acre (2,388 ha) Pennsylvania state park in Howard, Liberty, and Marion townships in Centre County, Pennsylvania in the United States. The park includes the Foster Joseph Sayers Reservoir, formed by damming Bald Eagle Creek and other smaller streams and covering 1,730 acres (700 ha). Bald Eagle State Park is at the meeting point of two distinct geologic features. The Allegheny Plateau is to the north and the Ridge and Valley area of Pennsylvania is to the south. The park is in the Bald Eagle Valley off Pennsylvania Route 150 in Howard, between Milesburg and Lock Haven.