Cannabis Ruderalis October 12, 2016 thcscience_admin Township in Iowa, USA Spring Valley Township is a township in Monona County, Iowa, USA.[1] References[edit] ^ U.S. Geological Survey Geographic Names Information System: Spring Valley Township, Monona County, Iowa Municipalities and communities of Monona County, Iowa, United StatesCounty seat: OnawaCities Blencoe Castana Mapleton Moorhead Onawa Rodney Soldier Turin Ute Whiting Map of Iowa highlighting Monona CountyTownships Ashton Belvidere Center Cooper Fairview Franklin Grant Jordan Kennebec Lake Lincoln Maple St. Clair Sherman Sioux Soldier Spring Valley West Fork Willow Unincorporatedcommunities Albaton Ticonic Ghost town Preparation Indian reservations Omaha Reservation‡ Footnotes‡This populated place also has portions in an adjacent county or counties Iowa portal United States portal 41°54′N 95°51′W / 41.900°N 95.850°W / 41.900; -95.850