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769,701-acre section. Keweenaw Bay to Copper Harbor: the deepest, wildest water on the American side. Lake trout everywhere and coaster brook trout along the rocky shore. The lake tops out around 850 ft. The depth chart is built from real NOAA hydrographic survey soundings, so the humps, channels and drop-offs you see are measured, not guessed. The season-by-season read for each species follows, from the map's own numbers.
Come spring, look for lake trout tight to the bank in 10 to 40 ft. They move out to 50 to 120 ft in summer and finish the year down in 20 to 80 ft. If you only fish one area, make it Rock reef: a rock pile around 34 ft that scores prime in fall. Best bite is early morning. A white tube jig (deep) or a magnum spoon on downrigger is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Rock reef (34 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Offshore hump (65 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Rock reef (34 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Offshore hump (65 ft) | White tube jig, Airplane jig |
When the water first warms, coho salmon slide up into 3 to 25 ft. By summer they slide out to 30 to 70 ft, and by winter most fish are in 20 to 60 ft. If you only fish one area, make it Falls River mouth (L'Anse): an inflow / creek mouth around 1 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a dodger + fly or a medium spoon above the thermocline rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Falls River mouth (L'Anse) (1 ft) | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 30 to 70 ft | dawn & dusk | Offshore hump (65 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 8 to 40 ft | dawn & dusk | Falls River mouth (L'Anse) (1 ft) | Casting spoon, Spinner (chartreuse) |
| Winter | 20 to 60 ft | midday | Deep hole (1 ft) | Small spoon, slow troll |
In spring, steelhead run shallow here, mostly 3 to 20 ft. Summer pushes them deeper, 5 to 45 ft, and winter fish settle into 4 to 15 ft. Deep hole is the standout, a deep basin at roughly 1 ft, rated prime for summer steelhead. Time it for early morning and the evening. You won't need more than an orange dodger + fly high in the column or a thin spoon off boards most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Falls River mouth (L'Anse) (1 ft) | Small spoon or spinner at the mouths, Jig + waxworm under float |
| Summer | 5 to 45 ft | dawn & dusk | Deep hole (1 ft) | Orange dodger + fly high in the column, Thin spoon off boards |
| Fall | 5 to 30 ft | dawn & dusk | Falls River mouth (L'Anse) (1 ft) | Spinner (silver/blue), Casting spoon |
| Winter | 4 to 15 ft | midday | Falls River mouth (L'Anse) (1 ft) | Float jig (black/purple), Bead rig |
Spring brook trout on Lake Superior - Keweenaw Peninsula hold shallow, usually 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. Put Falls River mouth (L'Anse) first on the milk run — an inflow / creek mouth near 1 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Falls River mouth (L'Anse) (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Offshore hump (30 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Falls River mouth (L'Anse) (1 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Falls River mouth (L'Anse) (1 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: lake whitefish in 15 to 45 ft. Midsummer fish sit out in 40 to 90 ft before dropping to 25 to 70 ft for winter. The spot to know is Rock reef, a rock pile in about 34 ft of water that rates prime for lake whitefish in spring. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Rock reef (34 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Offshore hump (65 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (34 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Offshore hump (65 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Come spring, look for burbot tight to the bank in 25 to 70 ft. They move out to 50 to 120 ft in summer and finish the year down in 15 to 60 ft. If you only fish one area, make it Rock reef: a rock pile around 34 ft that scores prime in winter. Best bite is after dark and midday. A heavy jig + cut bait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Offshore hump (65 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Offshore hump (65 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Rock reef (34 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Rock reef (34 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 92 structure marks on this chart. The deepest, Deepest basin, sits near 520 ft.
Access data: Michigan DNR — Michigan Boating Access Sites. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Michigan waters are set by the Michigan DNR — and special regulations can apply to Lake Superior - Keweenaw Peninsula specifically, so confirm the current rules before you fish.
Check the official Michigan fishing regulations →
Lake Superior - Keweenaw Peninsula is about 850 ft (259 m) deep at its deepest point. The depth chart here comes from real NOAA hydrographic surveys, so the contours reflect measured depths.
Anglers target lake trout, coho salmon, steelhead, brook trout, lake whitefish, burbot on Lake Superior - Keweenaw Peninsula.
Rock reef is the top-rated area: a rock pile in about 34 ft of water that rates prime for burbot in winter. The interactive chart above rates every spot for each species and season.
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Lake Superior - Keweenaw Peninsula is regulated by the Michigan DNR. Check the official Michigan regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Mud Lake 10 mi · Portage Lake (UP) 16 mi · Thayer Lake 16 mi · Roland Lake 18 mi · Lake Gratiot 19 mi · Calumet Lake 19 mi · Deer Lake 20 mi · La Belle, Lac Lake 21 mi · Otter Lake 24 mi · Bear Lake 25 mi · Lake Alice 26 mi · Lake Bailey 26 mi
See how Lake Superior - Keweenaw Peninsula stacks up: best coho salmon lakes in Michigan · best steelhead lakes in Michigan · best lake trout lakes in Michigan · best brook trout lakes in Michigan
Browse all Michigan fishing maps or see every water on DepthScout. Bathymetry credit: NOAA hydrographic surveys. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.