Show longest iziver the mississippi missouri general ly considered ono one river by geobra ahers la Is tho the longest in tho the world from tho fountainhead fountain head licad of tho the missouri in tho the on mhd south mouth west border 0 of montana it Us s total length la Is miles from tho the source of 0 its ita other bran branch eh at lako itasca in northern minnesota tho the so ao called proper Is 2553 miles long the second longest river rivo la Is th tho 0 nile miles from its ita remotest un tho the hagera gagern which flows flow into lako lake victoria into amazon river in south america has tho the greatest basin aquaro mile a |