The drainage of the river through the flatlands of the Missouri can sometimes lead to spectacular floods when the river can not drain . In the Great Flood of 1993 flooding caused Interstate 29 to be closed near the mouth . In the 2011 Missouri River floods , the Tarkio River and its other namesakes overwashed an area from Fortescue to the Missouri River totally obliterating Big Lake . On July 7 , 2011 the river rose in six hours in one burst at Fairfax
Great Flood of 1993
Great Flood of 1993
Tarkio River