Yell Township is one of seventeen townships in Boone County, Iowa, USA. As of the 2000 census, its population was 2,273.HistoryYell Township was organized in 1852. It is named for Colonel Archibald Yell, who fell at the Battle of Buena Vista.GeographyYell Township covers an area of 32.58sqmi and contains one incorporated settlement, Ogden. According to the USGS, it contains six cemeteries: Bluff Creek, Buckley, Hickory Grove, Milton Lott Grave, Mount Olive and Rose Hill.