Iowa River (Columbus Junction to Mississippi River)Water levels are dropping slowly some of the bigger sand bars are really sticking out now. Channel catfish ? good: the go-to baits continue to be frogs, chubs and crawdads. Work the brush piles and the drop-offs at the edges of the sandbars. Lake Belva DeerBluegill ? fair: work off the edges of the underwater mounds in the lake. The fish are down about ten ...