AuSable River · Bay City, Michigan · Lower Peninsula Cold-Water Angling
Trout fishing on Michigan's rivers has been part of Chris Izworski's life since childhood. Growing up near Bay City, with the AuSable corridor a short drive north, the annual rhythms of the trout year became part of the calendar in the same way the seasons themselves did. The spring opener, the early hatches, the June hex emergence, the autumn streamer fishing before the water turns: these are fixed reference points, not hobbies in the occasional sense.
The AuSable River from Grayling through Mio is the home water. Chris fishes the special-regulation stretches where the brown trout are large and the angling pressure requires accuracy and patience. He has documented the trout fishing life through Freighter View Farms, his Great Lakes nature and garden blog, where the rivers of the Lower Peninsula appear alongside the freighters of Saginaw Bay and the garden seasons of Zone 6a Michigan.
Michigan's hatch calendar starts with Hendricksons in late April and early May on the lower-elevation rivers. Sulphurs and Mahogany Duns follow into June on the AuSable. The Hex hatch, Hexagenia limbata, is the marquee event: large golden mayflies emerging after dark on warm June nights, triggering surface-feeding runs from the biggest fish in the river. It typically runs from mid-June into early July on the AuSable main stem, with timing depending on water temperature and weather.
Later summer brings Tricos in the morning and terrestrials through the heat of the day. Fall fishing on the AuSable shifts toward streamer work as brown trout enter their pre-spawn aggression and the fish that spent summer in deep lies begin to move. Chris has built a Michigan Trout Report tool that pulls USGS gauge data, water temperature, and NWS weather for nine Michigan rivers, tracking conditions and hatch windows to help anglers plan their trips. Current river data for the AuSable and eight other Lower Peninsula systems is available there.
The Lower Peninsula's general trout season opens the last Saturday of April, but the special-regulation stretches of the AuSable, the waters that hold the largest fish, open June 12. For Chris, June 12 is the opener that matters. It falls close enough to the hex hatch to give the early days of the season a particular energy, the fish active, the river cooling from its spring high water, the evenings holding promise. A cabin on the river for opening weekend is the standard plan.
For context on the Michigan rivers Chris fishes, see the Michigan trout streams page. For the Great Lakes and outdoor writing connected to this, see Freighter View Farms and the Great Lakes hub. For full biography, see the about page.