Towosahgy State Historic Site (23MI2), also known as Beckwith's Fort, is a large Mississippian earthwork mound site with a Woodland period Baytown culture component located in Mississippi County, Missouri. It is believed to have been inhabited from circa 400-1350 CE. The site is maintained by the Missouri Department of Natural Resources as a state historic site. The name Towosahgy is an Osage word which means "old town." It is not known if members of the historic Osage, who dominated a large area of present-day Missouri at the beginning of encounter with European colonizers, occupied the site.[3]