{"nrhp_refnum":"90000407","name":"Huntingdon Furnace","other_names":[],"category":"district","location":{"address":"Twnshp. Rd. 31106, 2 mi. NW of jct. with PA 45","address_restricted":false,"city":"Franklinville","county":"Huntingdon County","state":"PA","lat":40.657940571500035,"lon":-78.11615318120886,"geom_source":"nps_gis"},"listed_date":"1990-03-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A district of iron-plantation buildings and structures in the northern part of Huntingdon County, Pennsylvania, centred on the Huntingdon Furnace stack, which was rebuilt on this site in 1805 after being moved from a location about a mile upstream. The district includes an ironmasters' mansion built in 1851, a grist mill dating from about 1808, an office building, log and frame workers' houses, and a miller's house.","why_significant":"The nomination argues that Huntingdon Furnace is the most extensive and best-preserved iron furnace site in Huntingdon County, with its importance rooted in the county's iron industry. It also contends that the ironmasters' mansion, gristmill, workers' houses, mill house and stack together form a good architectural example of a northern iron plantation. The stack is described as an excellent example of original construction techniques.","narrative":"Huntingdon Furnace is an iron plantation in northern Huntingdon County, Pennsylvania, built along Warriors Mark Run, which powered both the furnace and the mill. George Anshutz, an ironmaker from Alsace, established the operation in 1796, and the stone blast furnace stack was rebuilt on the present site in 1805. The furnace lands once covered thousands of acres of timber, ore mines and farm fields. The stone gristmill, built about 1808, supplied flour and feed for the works and served local farmers until about 1920. The ironmasters' mansion, completed in 1851, is a two-and-a-half-story frame house with decorative cast iron balustrades and a fanlight doorway. The district is significant for its industrial role in the county and for the survival of its stack, mansion, log workers' house and mill, which together show how an iron plantation was organized.","period_of_significance":"1805-1869","architect_builder":null,"architectural_style":"Federal","criteria":["A","C"],"status_note":"The furnace and operations ceased before the 1880s; the grist mill is used only for storage; the office building is used as a residence.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:37.856447-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/90000407.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90000407/dbdf3633cc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90000407/dbdf3633cc-1600.webp","licence":"Public domain","author":"Jet Lowe","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Huntingdon_Furnace.jpg\" rel=\"noopener\">Jet Lowe</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Huntingdon_Furnace.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993059","wikipedia":"https://en.wikipedia.org/wiki/Huntingdon_Furnace","wikidata":"https://www.wikidata.org/wiki/Q5945121"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/huntingdon-county/huntingdon-furnace-90000407/"}