Where Lake Huron pours into the St. Clair River — a hard-current fishery for walleye and smallmouth in the rapids under the Blue Water Bridge, with lake trout and salmon out on the lake end.
Part of the Great Lakes region.
Biting right now — 8 species are worth targeting in September here, and the 5 marked Peak are at their best right now.
Tap any species for how to identify it, when it runs and what to throw. This is when the fish are active here — check the regulations below before you keep anything.
Port Huron fronts the west side of the upper St. Clair River at the south end of Lake Huron, with the Black River running southeast through the city and emptying into the St. Clair 2.4 miles below its head. The head of the river is entered from a dredged channel leading through the shallow lower end of Lake Huron, marked by a 180.4-degree lighted range with a racon at the front light.
The current is the defining feature here — at times 5 mph or more above the Blue Water Bridge and 4 mph or more for a mile below it, with a west set for upbound traffic between the bridge and the Lake Huron Cut buoys. The rapids section runs from about 1,000 feet above to 200 or 300 feet below the bridge, and sustained high north to northeast winds on Lake Huron increase the velocities further.
The Blue Water Bridge crosses just below the head of the river on two fixed spans with a least clearance of 135 feet and is prominent on the approach. Fort Gratiot Light stands on the west side of the head of the river. The river has a seasonal rise and fall of about a foot, generally in step with Lake Huron, and high winds can move the level up to 2 feet either way.
Michigan enforces slow-no-wake for recreational craft from the mouth of the Black River downstream — within 200 feet of any shore, dock or pierhead for boats under 26 feet, and within 600 feet for boats 26 feet or longer. The Port Huron Coast Guard Station is on the west side of the head of the river just south of Fort Gratiot Light, with a regulated navigation area off it.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Walleye | ||||||||||||
| Yellow Perch | ||||||||||||
| Smallmouth Bass | ||||||||||||
| Northern Pike | ||||||||||||
| Steelhead | ||||||||||||
| Brown Trout |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Walleye | ||||||||||||
| Smallmouth Bass | ||||||||||||
| Lake Trout | ||||||||||||
| Coho Salmon | ||||||||||||
| Muskie | ||||||||||||
| Whitefish |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinook Salmon | ||||||||||||
| Coho Salmon | ||||||||||||
| Lake Trout | ||||||||||||
| Walleye | ||||||||||||
| Yellow Perch | ||||||||||||
| Steelhead |
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Typical: 15–25 in, 1–5 lb
Tell it apart: The milky light-reflecting eye, large canine teeth, and white-tipped lower tail lobe separate a walleye from a yellow perch, which has a normal dark eye and no canines.
Easily confused with: Yellow Perch
Typical: 7–11 in, 0.3–0.8 lb
Tell it apart: Bold dark vertical bars over a yellow body, orange-tinted lower fins, a normal dark eye, and no canine teeth mark it as a perch, not a walleye.
Easily confused with: Walleye
Typical: 12–18 in, 1–4 lb
Tell it apart: A bronze body with vertical bars, a red eye, and an upper jaw ending no farther back than the rear of the eye confirms smallmouth (largemouth's jaw extends well past the eye and it shows a horizontal stripe, not bars).
Typical: 20–30 in, 2–8 lb
Tell it apart: Pike show LIGHT spots on a DARK background, a fully scaled cheek, and 5 or fewer jaw pores; muskie reverse it (dark marks on a light body, scaleless lower cheek) with 6-9 pores per side.
Easily confused with: Muskie
Typical: 24–30 in, 5–10 lb
Tell it apart: A white mouth AND white gums with spots radiating across the whole tail separate a steelhead from coho (dark mouth, white gums, spots on the upper tail lobe only) and chinook (black mouth and black gums).
Easily confused with: Brown Trout, Coho Salmon, Chinook Salmon
Typical: 16–26 in, 2–10 lb
Tell it apart: Red-orange spots with pale halos and a nearly spotless tail mark a brown trout; steelhead and the salmon carry black-only spots and a clearly spotted tail.
Easily confused with: Steelhead, Coho Salmon, Chinook Salmon
Typical: 24–32 in, 5–15 lb
Tell it apart: A deeply forked tail with pale haloless spots on a dark body identifies lake trout; browns and steelhead have squared tails, and brown trout add red/orange haloed spots. (Worm-like vermiculations belong to brook trout, NOT lake trout.)
Easily confused with: Brown Trout, Steelhead
Typical: 20–26 in, 4–8 lb
Tell it apart: Coho has a WHITE gum line (the reliable tell) with tail spots on the upper lobe only; Chinook has a black mouth WITH black gums and spots on both tail lobes; steelhead has a fully white mouth and gums.
Easily confused with: Chinook Salmon, Steelhead
Typical: 34–46 in, 12–30 lb
Tell it apart: Muskie show DARK markings on a LIGHT body, a scaleless lower cheek/gill cover, pointed tail tips, and 6-9 jaw pores per side, the reverse of pike (light spots on dark, scaled cheek, 5 or fewer pores, rounded tail tips).
Easily confused with: Northern Pike
Typical: 12–26 in, 2–4 lb
Tell it apart: A small downward-set toothless mouth under a blunt overhanging snout, large unspotted silvery scales, a deeply forked tail, and an adipose fin identify lake whitefish; the lack of teeth and spots rules out the trout and salmon.
Typical: 28–36 in, 15–25 lb
Tell it apart: An entirely black mouth INCLUDING the gum line, plus spots on both tail lobes, separates Chinook (king) from the white-gummed coho and the fully white-mouthed steelhead.
Easily confused with: Coho Salmon, Steelhead
The Great Lakes have no tides — plan around water temperature (the single biggest bite trigger), solunar windows, and wind direction; early morning and evening low-light windows consistently outperform midday regardless of season.
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