The Prairie Fire Festival in Cottonwood Falls celebrates the annual range-management practice of burning the tallgrass prairie to promote new growth. Indigenous Native Americans noticed that bison liked to graze on the freshly burned grasses and shared the concept with European settlers, who went on to develop exceptional cattle-grazing territory.The festival marks this Flint Hills tradition with a weeklong schedule of talks on everything from “The Kaw Dwellings in Morris County, Kan.” to “Mammals of the Tallgrass Prairie” and performances by historians and bluegrass groups.