About of the county is separated from the rest of the state by the Mississippi River, requiring travelers to cross into Tennessee by road (there is no bridge from Missouri), to reach the Kentucky Bend exclave.
About of the county is separated in a peninsula from the rest of the state by an oxbow of the Mississippi River. Travelers going there have to pass into Tennessee by road (there is no bridge from Missouri) and then go north to reach the Kentucky Bend exclave.