Big Chinook Salmon are a cold water species, so look for them in temperatures below 45 degrees. Downriggers are a popular method to troll in deeper waters.

Illinois anglers can expect to catch salmon from shore, off piers, and out in the lake by trolling with a boat. Charter boat service from Chicago may be available. Boat fishermen are cautioned to use adequate sized boats and motors when fishing as Lake Michigan can be very dangerous. Strict compliance with the Illinois Boating Act is essential. Important items to have aboard a boat include life preservers, fire extinguishers, portable marine band radio, a compass, and an auxillary or extra outboard motor. Daily weather reports and storm warning information is a prerequisite to fishing by boat.

Salmon have a tendency to deteriorate fast after they are caught. Therefore, the angler should immediately remove the gills and internal organs. The quality of the flesh will also be improved by placing the cleaned fish on ice.