Huntingdon Furnace is a national historic district and historic iron furnace and associated buildings located at Franklin Township in Huntingdon County, Pennsylvania. It consists of seven contributing buildings and one contributing structure. They are the iron furnace, office building, the ironmaster's mansion, log worker's house, a residence, the farm manager's residence, the grist mill and the miller's house. The iron furnace was moved to this site in 1805, from its original site one mile upstream. It measures 30 feet square by 30 feet high. The ironmaster's mansion was built in 1851, and is a 2 1/2-story, "L"-shaped frame dwelling. The grist mill dates to 1808, and is a 3 1/2-story, rubble stone building measuring 50 feet by 45 feet. The furnace was in operation from 1796, until it ceased operations in the 1880s. It was listed on the National Register of Historic Places in 1990. References External links Industrial buildings and structures on the National Register of Historic Places in Pennsylvania Historic American Engineering Record in Pennsylvania Historic districts on the National Register of Historic Places in Pennsylvania Industrial buildings completed in 1805 Buildings and structures in Huntingdon County, Pennsylvania Ironworks and steel mills in Pennsylvania Industrial furnaces 1805 establishments in Pennsylvania National Register of Historic Places in Huntingdon County, Pennsylvania