Your boat will be facing up river. Slide the spoons as close to any structure as possible to entice those big fish into leaving their hiding places. On some rivers you can back troll for miles and on some only fifty yards. It's best to leave your rods in the rod holders and let the fish hook themselves. Once the rod doubles over, grab the rod and keep smooth tension to the hook.
Many rivers have dead slow water on the inside corners.
This water is premium even if the eddie is only 20 yards long. Many big fish will hold up in this water and take a break. Use the same gear set up as back trolling. In this slower water you can very your speeds like you would in lakes. This is a fairly new method that is starting to catch on because of it's success.