{"nrhp_refnum":"05000450","name":"Illick's Mill","other_names":["Peter's Mill","Monocacy Milling Co."],"category":"building","location":{"address":"130 Illick's Mill Rd.","address_restricted":false,"city":"Bethlehem","county":"Northampton County","state":"PA","lat":40.64189655500007,"lon":-75.38047799299994,"geom_source":"nps_gis"},"listed_date":"2005-05-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A four-level stone grist mill on Monocacy Creek in Bethlehem, Northampton County, Pennsylvania, built in 1856 in the vernacular tradition and extended in 1880 with a timber roof monitor added in 1880 and expanded in 1887. It stands as the centerpiece of a WPA-era park.","why_significant":"The nomination argues the mill is a textbook example of Lehigh Valley mill design and construction and that its roof monitor reflects adaptation to roller milling. It also argues the mill's closure reflects competition from Midwestern flour and the decline of the regional agrarian economy. It is one of the few surviving mills on Monocacy Creek.","narrative":"Illick's Mill is a four-level grist mill of uncoursed rubble stone on Monocacy Creek in Bethlehem, Pennsylvania. John Peter built it in 1856 with heavy timber framing and a slate roof, and it was extended 20 feet to the east in 1880. A roof monitor was added in 1880 and extended in 1887 to house larger roller-milling machinery, giving the building its distinctive profile. The mill operated until 1915, when competition from cheaper Midwestern flour ended production and the milling machinery was sold. Its surroundings were later changed by the Works Progress Administration, which built a park here in 1935. The nomination regards the mill as representative of Lehigh Valley mill construction and as a record of the region's early industrial and agricultural economy. Only a few other mills from the Monocacy Creek group survive, and this one is the last early industrial grist mill on the creek.","period_of_significance":"1856-1915","architect_builder":"Peter, John; Illick, Joseph","architectural_style":"No Style","criteria":["A","C"],"status_note":"Restored roof in 1997 and in a later restoration; grist milling ended in 1915 and the mill later served various public uses.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:10:27.551189-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/05000450.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/05000450/8badc5087e-800.webp","url_1600":"https://nationalhistoricalregister.com/media/05000450/8badc5087e-1600.webp","licence":"Public domain","author":"Pubdog","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Illick%27s_Mill_Oct_11.JPG\" rel=\"noopener\">Pubdog</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Illick%27s_Mill_Oct_11.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71994672","wikipedia":"https://en.wikipedia.org/wiki/Illick%27s_Mill","wikidata":"https://www.wikidata.org/wiki/Q5999179"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/northampton-county/illicks-mill-05000450/"}