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Brown trout in Michigan

Salmo trutta — introduced to Michigan, holding water between 54 and 66°F. Michigan's own fisheries records name 20 waters here.

Brown trout, Salmo trutta
Salmo trutta — Eric Engbretson for U.S. Fish and Wildlife Service, Public domain, via Wikimedia Commons.

The first brown trout in North American water went into the Pere Marquette in April 1884, and the Pere Marquette is on the list below — with the Manistee, the Au Sable and its north branch, the Pine, the Middle Branch Pere Marquette and the Platte — as a river MDNR's own surveys and stocking records put brown trout in. Twenty waters with a page here carry that record and twenty more are named without one.

An introduced fish that has outlasted the introduction: eight to eighteen inches is the usual range, holding 54 to 66°F and hanging on to 75, which is a wider and warmer band than the brook trout it shares the state with. It takes the larger water and the deeper bends for the same reason. Michigan's minimum size is set per species and the brown trout's is not the brook trout's.

What it is

Salmonidae — true trout, genus Salmo · Salmo trutta

Typical length in Michigan is 8 to 18 inches. That is a curated range for water of this kind, not an average of any survey: MDNR's abundance file counts fish per acre and per mile and records no lengths at all, and no other state on this site publishes lengths either.

Native or stocked

Introduced. The first brown trout planted in North American water went into the Pere Marquette in April 1884, from German eggs by way of the Northville hatchery — the river is still fished for the descendants.

Where to find it in Michigan

Waters MDNR's own files put this fish in — a survey station where it was counted, or a planting site where it was stocked — matched to the river pages on this site by position, not by name. Surveyed water is listed first: a survey is a fish somebody counted, a stocking is a fish somebody put there.

Water RecordLatest
Manistee River 6 survey stations, 180 stocking records 2026
Pere Marquette River 13 survey stations, 52 stocking records 2026
Au Sable River 4 survey stations, 65 stocking records 2026
North Branch Manistee River 20 survey stations 2022
Houghton Creek 16 survey stations 2022
Gamble Creek 14 survey stations 2019
North Branch Au Sable River 13 survey stations 2019
Pine River 11 survey stations 2019
Middle Branch Pere Marquette River 5 survey stations, 6 stocking records 2022
West Branch Sturgeon River 6 survey stations 2019
Platte River 4 survey stations, 4 stocking records 2026
Bear Creek 5 survey stations 2019
South Branch Au Sable River 3 survey stations, 6 stocking records 2022
Boardman River 4 survey stations 2019
Little Bear Creek 4 survey stations 2019
Bigelow Creek 3 survey stations 2019
Little South Branch Pere Marquette River 1 survey station, 4 stocking records 2022
Little Manistee River 1 survey station, 2 stocking records 2022
Rifle River 65 stocking records 2026
Muskegon River 55 stocking records 2026

Other Michigan waters in the same record

Named in MDNR's files without a river page here to link to — mostly lakes and Great Lakes water, which for brown trout is where the fish is. Listed rather than dropped: a page that showed nothing would read as a data failure when it is the actual shape of the fishery.

Where that is on the map

Every subwatershed this site covers in Michigan as a faint dot, and the ones holding the waters listed above lit. A coverage map with this species on it — the map on the front of the site is the map.

When to fish for it

Brown trout hold 54–66°F water and are under real stress above 75°F. On this map's own colours that band is cold, cold-transitional, cool water, which is what the river pages and the live map are painting when they run green and blue. The season follows the temperature rather than the calendar: the water is in the band early and late in the day through the summer, and all day either side of it.

Spawning: Late October into December, on gravel riffles, later in the season than the rainbow and overlapping the brook trout.

What is hatching in Michigan, month by month, from the same seed the app's hatch panel reasons from. These are the state's recorded hatches, not this species' — trout eat what is in the water.

MonthPeaking
JanuaryAquatic Worm, Damselfly, Dragonfly, Fish Eggs, Hellgrammite, Leech and 6 more
FebruaryAquatic Worm, Damselfly, Dragonfly, Hellgrammite, Leech, Little Black Stonefly and 6 more
MarchAquatic Worm, Blue-Winged Olive, Damselfly, Dragonfly, Hellgrammite, Leech and 7 more
AprilAquatic Worm, Blackfly, Blue Quill, Blue-Winged Olive, Cranefly, Damselfly and 15 more
MayAlderfly, Aquatic Worm, Blackfly, Blue Quill, Blue-Winged Olive, Caterpillar and 24 more
JuneAlderfly, Aquatic Worm, Black Ant, Blackfly, Brown Drake, Caterpillar and 32 more
JulyAnnual Cicada, Aquatic Worm, Black Ant, Caterpillar, Crayfish, Cream Cahill and 30 more
AugustAnnual Cicada, Aquatic Worm, Black Ant, Caterpillar, Cinnamon Flying Ant, Crayfish and 25 more
SeptemberAquatic Worm, Black Ant, Blue-Winged Olive, Caterpillar, Cinnamon Flying Ant, Cranefly and 22 more
OctoberAquatic Worm, Blue-Winged Olive, Cranefly, Crayfish, Cricket, Damselfly and 13 more
NovemberAquatic Worm, Blue-Winged Olive, Damselfly, Dragonfly, Fish Eggs, Hellgrammite and 7 more
DecemberAquatic Worm, Damselfly, Dragonfly, Fish Eggs, Hellgrammite, Leech and 5 more

How to catch it

Larger and slightly warmer water than brook trout will hold: undercut banks, logjams, deep bends and the shaded seams under cover. The most nocturnal of the five.

Patterns from this site's book, chosen by the insects recorded from Michigan's own regions and filtered to the kinds worth putting in front of this fish. Each one has its tying recipe.

Rules for brown trout in Michigan

Michigan sets a minimum size per species under each of its four stream regulation types, and these are that column for brown trout. The creel is a trout total across species, not a limit on this one. Snapshot taken 2026-08-16 — the book on the water is the book.

TypeMinimum sizeSeasonCreel
Type 1 1960 waters 8" Last Saturday in April–September 30th 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling.
Type 2 14 waters 12" Last Saturday in April–September 30th 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling.
Type 3 59 waters 15" January 1st–December 31st 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling.
Type 4 133 waters 10" January 1st–December 31st 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling.

The full Michigan regulation page →

Habitat notes

Larger and slightly warmer water than brook trout will hold: undercut banks, logjams, deep bends and the shaded seams under cover. The most nocturnal of the five.

The four thermal classes named there are the ones every river on this site is painted with, at breaks of 58, 64 and 70°F. A river page showing cold water is showing water inside this fish's band; that is the whole point of the colour.

The other trout in Michigan

Brown trout in the other states

The same fish, on different water and under different rules. Michigan's sand-bottomed rivers, Wisconsin's driftless springs, Minnesota's North Shore, Virginia's mountain brook water and North Carolina's tailwaters and freestone gradient are five fisheries, and the limits differ with them.

Open the trout map →Every trout stream near you, coloured by today's water temperature.