Spring means high water in most areas, due to snowmelt and high annual rainfall. And spring means movement for river bass.
Walking baits, poppers, propeller baits and minnowbaits twitched on top shine on rivers during the summer months. Topwaters have magic appeal for river smallmouths in warm water, too.
Smallmouths can winter deep in reservoirs, down to 50 feet or deeper. Wherever 50-foot flats exist, that's where they'll be whether it's in a creek arm or the main reservoir.
It's typical to have smallmouths congregate on humps and sunken islands that top out at 15 to 25 feet deep during fall in natural lakes.
Flash lures are one of the most popular jigging lures for ice fishing. Potential jigging sequences are limited only by your imagination and your interpretation of how fish are reacting.