AuSable River · Bay City, Michigan · Fly Fishing the Lower Peninsula
Chris Izworski grew up in and around Bay City, Michigan, close enough to the AuSable River corridor that trout fishing has been part of his life for decades. The AuSable, running through Grayling and Mio before emptying into Lake Huron near Oscoda, is one of the most celebrated trout rivers in the country. Its cold, clear water supports populations of brown and brook trout that draw anglers from across the Midwest each season.
The annual opener is a fixed point on the calendar. The Lower Peninsula's general trout season opens the last Saturday of April, but Chris plans each year around the June 12 opener for the special-regulation stretches of the AuSable, where the fish are larger and the pressure is higher. The hex hatch, the Hexagenia limbata emergence that defines AuSable nights in mid-June, is among the most anticipated dry-fly events in Michigan angling.
The AuSable drains a large portion of the northern Lower Peninsula, picking up the South Branch near Roscommon and the North Branch above Mio. The main stem from Grayling downstream through Mio holds the water temperatures and gravel substrate that trout require. The flies that work change week by week through the season: Hendricksons in May, Sulphurs and Brown Drakes into June, then the Hex emergence that can last into early July on the right water. Fall means streamers and nymphs as fish move and feed ahead of winter.
Chris has written about the AuSable and Michigan fishing life on Freighter View Farms, his Great Lakes-focused garden and nature blog. The blog documents the seasons of the Lower Peninsula from a Bay City perspective, including the rhythms of the trout year. Details on Michigan hatch timing and river conditions are tracked through the Michigan Trout Report, a river conditions tool built to aggregate USGS gauge data and NWS weather for nine Michigan rivers.
Beyond the AuSable, Michigan's Lower Peninsula holds several cold-water systems worth attention. The Manistee River, running from near Gaylord to Lake Michigan, carries brown and steelhead and fishes well through the shoulder seasons. The Pere Marquette in Mason and Lake counties holds an outstanding wild brown trout population in its upper reaches and heavy steelhead runs in fall and winter. The Boardman near Traverse City and the Betsie in Benzie County are smaller systems with strong native trout populations that reward careful wading and precise presentation.
The Upper Peninsula holds its own cold-water fisheries, anchored by brook trout in isolated headwater streams and lake-run fish in systems draining to Lake Superior and Lake Huron. For those willing to travel and wade, the UP offers a kind of solitude that is increasingly rare in the Lower Peninsula's better-known rivers.
Michigan trout fishing cannot be fully separated from the Great Lakes. The big water shapes the climate of the rivers that flow into it, moderates temperatures, and provides the offshore habitat for lake-run fish that move in and out of coastal streams. Chris's broader interest in the Great Lakes, documented on the Great Lakes page and through Freighter View Farms, connects naturally to the rivers and cold-water ecosystems that the lakes anchor. The same freighters that pass the Bay City waterfront also pass the mouth of the AuSable at Oscoda, connecting the small-water experience of river fishing to the larger scale of the lakes.
For more on Chris Izworski's outdoors and Michigan interests, see the trout fishing page, the Great Lakes hub, and the about page.