(Pennsylvania)
Greenwood Furnace State Park is a 423-acre (171 ha) Pennsylvania state park in Jackson Township, Huntingdon County, Pennsylvania in the United States. The park is near the historic iron making center of Greenwood Furnace. The park includes the ghost town of Greenwood that grew up around the ironworks, old roads and charcoal hearths. Greenwood Furnace State Park is adjacent to Rothrock State Forest and on the western edge of an area of Central Pennsylvania known as the Seven Mountains. The park is on Pennsylvania Route 305, 20 miles (32 km) south of State College. (Ref: https://en.wikipedia.org/wiki/Greenwood_Furnace_State_Park)