Some of the most productive sites were riffles, tributary mouths, backwater pools, island pools, undercut banks, eddies, and edges of aquatic vegetation. When traveling upstream, I often sacrifice my ideals and use a 12 foot johnboat and 4 hp. I sometimes further compromise myself when collecting with a friend who is also an avid angler. His boat has overkill features of an aerated bait well, electronic depth finder, and 50 hp. Finally, anyone planning a float trip will need river maps listing public accesses and campsites.
Most maps also depict dams, rapids, riffles, and alternate routes through side channels.
Iowa Conservation Commission Wallace State Office Bldg. A Gathering of Waters Minnesota State Documents Center 117 University Ave.