Ka cika wannan jumla: Sassan Chesterfield suna cikin kwarin kogin Missouri, wanda yanzu ake kira Chesterfield Valley, a da ake kira Gumbo Flats. A nan da dama kananan creeks zubar a cikin Missouri River (Caulks Creek da Bonhomme Creek). Wannan yanki ya nutse a lokacin
Babban Ambaliyar 1993; mafi girma dams gina tun sa'an nan ya kai ga m kasuwanci ci gaba a kwarin. Chesterfield Valley shine wurin da Ruhun St. Louis Airport, wanda aka yi amfani da shi don jirgin sama na kamfanoni, da kuma mafi tsayi a cikin filin jirgin sama a Amurka.