 Parts of the river itself are designated for recreational or preservational use . The Missouri National Recreational River consists of portions of the Missouri downstream from Fort Randall and Gavins Point Dams that total 98 miles ( 158 km ) . These reaches exhibit islands , meanders , sandbars , underwater rocks , riffles , snags , and other once @-@ common features of the lower river that have now disappeared under reservoirs or have been destroyed by channeling . About forty @-@ five steamboat wrecks are scattered along these reaches of the river . 
 Parts of the river itself are designated for recreational or preservational use . The Missouri National Recreational River <a href='uninflect' title='1'><mark>consists</mark></a> of portions of the Missouri downstream from Fort Randall and Gavins Point Dams <a href='null_relcl' title='2'><mark>that</mark></a>total 98 miles ( 158 km ) . These <a href='uninflect' title='3'><mark>reaches</mark></a> exhibit islands , meanders , sandbars , underwater rocks , riffles , snags , and other once @-@ common features of the lower river <a href='null_relcl' title='4'><mark>that</mark></a><a href='been_done' title='5'><mark>have</mark></a> now disappeared under reservoirs or <a href='been_done' title='6'><mark>have</mark></a> been destroyed by channeling . About forty @-@ five steamboat wrecks are scattered along these reaches of the river . 
Parts of da river itself r designated fir recreational or preservational use . TdaMissouri National Recreational River consist of portions of thdaissouri downstream from Fort Randall and Gavins Point Dams total 98 miles ( 158 km ) . dese reach exhibit islands , meanders , sandbars , underwater rocks , riffles , snags , and other once @-@ common features of the lower river done now disappeared under reservoirs or done been destroyed by channeling . About forty @-@ five steamboat wrecks are scattered along tdesereaches of the river .