National Register Listings in Armstrong County, Pennsylvania

Allegheny River Lock and Dam No. 6 Allegheny River Lock and Dam No. 7 Allegheny River Lock and Dam No. 9 Allegheny River Lock and Dam No.8 Allegheny River Locka and Dam No. 5 Armstrong County Courthouse and Jail Bradys Bend Iron Company Furnaces Bridge between Madison and Mahoning Townships Colwell Cut Viaduct Drake Log Cabin Ford City Armory Marshall, Thomas, House St. Patrick's Roman Catholic Church St. Stephen's Church