Rubuta ci gaba don wannan sakin layi - 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 ruwa na 1993
; manyan dams da aka gina tun daga wannan lokacin sun haifar da ci gaban kasuwanci mai yawa 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.