The Logan Furnace Mansion is an historic, American home that is located in Spring Township, Centre County, Pennsylvania.

It was added to the National Register of Historic Places in 1977.

History and architectural features

This historic structure is an L-shaped building, consisting of a 2+1⁄2-story, five-bay stone main house, with a two-story, stone kitchen ell. The ell was the original home and was built between 1798 and 1800. The main house was built in 1818. The house and iron furnace were built by John Dunlop (Bellefonte iron master). By 1826, the furnace was capable of producing 1,200 tons of pig iron per year.

The stone house, a few large mill stones, and an iron workers house are still visible.

It was added to the National Register of Historic Places in 1977.