[3] Name on the Register Image Date listed[4] Location City or town Description 1 Allenwood River Bridge Allenwood River Bridge June 22, 1988 (#88000865 ) Legislative Route 460 over the West Branch of the Susquehanna River 41°06′28″N 76°53′25″W / 41.107778°N 76.890278°W / 41.107778; -76.890278 (Allenwood River Bridge ) Delaware Township Bridge was replaced with a new structure in 1990. It extended into Gregg Township in Union County 2 Beck House Beck House January 11, 1976 (#76001659 ) 62 North Front Street 40°51′50″N 76°47′46″W / 40.863889°N 76.796111°W / 40.863889; -76.796111 (Beck House ) Sunbury 3 Gottlieb Brown Covered Bridge Gottlieb Brown Covered Bridge August 8, 1979 (#79002311 ) East of Potts Grove on Township 594 41°00′06″N 76°46′26″W / 41.001667°N 76.773889°W / 41.001667; -76.773889 (Gottlieb Brown Covered Bridge ) East Chillisquaque Township Extends into Liberty Township in Montour County 4 Col. James Cameron House Col. James Cameron House May 5, 1989 (#89000360 ) Pennsylvania Route 405 /River Road, southeast of Milton 41°00′08″N 76°51′43″W / 41.002222°N 76.861944°W / 41.002222; -76.861944 (Col. James Cameron House ) West Chillisquaque Township 5 Dauphin County Bridge No. 27 Dauphin County Bridge No. 27 August 2, 1993 (#93000720 ) Deibler's Dam Road (Mahantango Creek Road) across Mahantango Creek 40°38′05″N 76°51′23″W / 40.634722°N 76.856389°W / 40.634722; -76.856389 (Dauphin County Bridge No. 27 ) Lower Mahanoy Township Extends into Mifflin Township in Dauphin County . Photo shows replacement bridge 6 Himmel's Church Covered Bridge Himmel's Church Covered Bridge August 8, 1979 (#79002312 ) Northeast of Rebuck on Township 442 40°43′23″N 76°43′12″W / 40.723056°N 76.72°W / 40.723056; -76.72 (Himmel's Church Covered Bridge ) Washington Township 7 Hopper-Snyder Homestead Hopper-Snyder Homestead July 3, 1979 (#79002315 ) Northeast of Watsontown off Pennsylvania Route 49061 41°05′39″N 76°51′21″W / 41.094167°N 76.855833°W / 41.094167; -76.855833 (Hopper-Snyder Homestead ) Delaware Township 8 Hower-Slote House Hower-Slote House August 22, 1979 (#79002314 ) West of Turbotville 41°06′06″N 76°47′45″W / 41.101667°N 76.795833°W / 41.101667; -76.795833 (Hower-Slote House ) Lewis Township 9 Keefer Station Covered Bridge Keefer Station Covered Bridge August 8, 1979 (#79002313 ) East of Sunbury on Township 698 40°52′14″N 76°43′25″W / 40.870556°N 76.723611°W / 40.870556; -76.723611 (Keefer Station Covered Bridge ) Upper Augusta Township 10 William Kirk House William Kirk House December 2, 1980 (#80003590 ) West of Turbotville 41°05′56″N 76°48′43″W / 41.098889°N 76.811944°W / 41.098889; -76.811944 (William Kirk House ) Delaware Township 11 Lawrence L. Knoebel Covered Bridge Lawrence L. Knoebel Covered Bridge August 8, 1979 (#79002309 ) Knoebel's Grove 40°52′38″N 76°30′21″W / 40.877222°N 76.505833°W / 40.877222; -76.505833 (Lawrence L. Knoebel Covered Bridge ) Ralpho Township Extends into Cleveland Township in Columbia County 12 Kreigbaum Covered Bridge Kreigbaum Covered Bridge August 8, 1979 (#79002316 ) East of Elysburg on Township 459 40°50′51″N 76°30′29″W / 40.8475°N 76.508056°W / 40.8475; -76.508056 (Kreigbaum Covered Bridge ) Ralpho Township Extends into Cleveland Township in Columbia County 13 Milton Armory Milton Armory July 12, 1991 (#91000905 ) 133 Ridge Avenue 41°01′01″N 76°50′58″W / 41.016944°N 76.849444°W / 41.016944; -76.849444 (Milton Armory ) Milton 14 Milton Freight Station Milton Freight Station April 13, 1977 (#77001180 ) 90 Broadway 41°01′10″N 76°51′08″W / 41.019444°N 76.852222°W / 41.019444; -76.852222 (Milton Freight Station ) Milton 15 Milton Historic District Milton Historic District July 24, 1986 (#86001933 ) Roughly bounded by 8th and Upper Market Streets, Spruce Avenue, and Stanton, High and Apple Streets, and the Susquehanna River 41°01′20″N 76°50′59″W / 41.022222°N 76.849722°W / 41.022222; -76.849722 (Milton Historic District ) Milton 16 Northumberland County Courthouse Northumberland County Courthouse December 30, 1974 (#74001800 ) 207 Market Street 40°51′42″N 76°47′43″W / 40.861667°N 76.795278°W / 40.861667; -76.795278 (Northumberland County Courthouse ) Sunbury 17 Northumberland Historic District Northumberland Historic District November 18, 1988 (#88002313 ) Roughly bounded by Fourth and A Streets, the North Shore Railroad , and Wheatley Avenue 40°53′26″N 76°47′39″W / 40.890556°N 76.794167°W / 40.890556; -76.794167 (Northumberland Historic District ) Northumberland 18 Pennsylvania Canal and Limestone Run Aqueduct Pennsylvania Canal and Limestone Run Aqueduct December 19, 1978 (#78002438 ) Bounded by Broadway, Filbert Street, Limestone Run, and Bound Avenue 41°01′07″N 76°51′13″W / 41.018611°N 76.853611°W / 41.018611; -76.853611 (Pennsylvania Canal and Limestone Run Aqueduct ) Milton 19 Dr. Joseph Priestley House Dr. Joseph Priestley House September 11, 1981 (#81000554 ) 100 King Street 40°53′20″N 76°47′37″W / 40.888889°N 76.793611°W / 40.888889; -76.793611 (Dr. Joseph Priestley House ) Northumberland 20 Joseph Priestley House Joseph Priestley House October 15, 1966 (#66000673 ) Priestley Avenue 40°53′24″N 76°47′25″W / 40.89°N 76.790278°W / 40.89; -76.790278 (Joseph Priestley House ) Northumberland 21 Richards Covered Bridge Richards Covered Bridge August 8, 1979 (#79002308 ) East of Elysburg on Township 804 40°52′03″N 76°30′29″W / 40.867444°N 76.508°W / 40.867444; -76.508 (Richards Covered Bridge ) Ralpho Township Extends into Cleveland Township in Columbia County 22 Rishel Covered Bridge Rishel Covered Bridge August 8, 1979 (#79002310 ) East of Montandon on Township 573 40°57′37″N 76°48′58″W / 40.960278°N 76.816111°W / 40.960278; -76.816111 (Rishel Covered Bridge ) East and West Chillisquaque Townships 23 Caspar Snyder House Caspar Snyder House November 24, 1978 (#09000101 ) Pennsylvania Route 47 , south of Sunbury 40°46′53″N 76°50′31″W / 40.781389°N 76.841944°W / 40.781389; -76.841944 (Caspar Snyder House ) Lower Augusta Township 24 Sodom Schoolhouse Sodom Schoolhouse February 12, 1974 (#74001799 ) East of Montandon on Pennsylvania Route 45 40°57′57″N 76°49′38″W / 40.965833°N 76.827222°W / 40.965833; -76.827222 (Sodom Schoolhouse ) West Chillisquaque Township 25 Sunbury Armory Sunbury Armory December 22, 1989 (#89002082 ) Catawissa Avenue, northeast of Sunbury 40°52′22″N 76°46′40″W / 40.872778°N 76.777778°W / 40.872778; -76.777778 (Sunbury Armory ) Upper Augusta Township 26 Sunbury Historic District Sunbury Historic District November 3, 1983 (#83004240 ) Roughly bounded by Arch, Chestnut, Front, and 5th Streets 40°51′42″N 76°47′37″W / 40.861667°N 76.793611°W / 40.861667; -76.793611 (Sunbury Historic District ) Sunbury 27 Warrior Run Presbyterian Church Warrior Run Presbyterian Church April 2, 1973 (#73001659 ) North of McEwensville on Pennsylvania Route 147 41°05′55″N 76°48′25″W / 41.098611°N 76.806944°W / 41.098611; -76.806944 (Warrior Run Presbyterian Church ) Delaware Township 28 Watsontown River Bridge Watsontown River Bridge June 22, 1988 (#88000801 ) Legislative Route 240 spur over the West Branch of the Susquehanna River 41°04′51″N 76°51′55″W / 41.080833°N 76.865278°W / 41.080833; -76.865278 (Watsontown River Bridge ) Watsontown Extends into White Deer Township in Union County 29 Zion Stone Church Zion Stone Church November 1, 1984 (#84000267 ) Tulpehocken Road in Augustaville 40°48′12″N 76°44′29″W / 40.803361°N 76.741333°W / 40.803361; -76.741333 (Zion Stone Church ) Rockefeller Township