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Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
259-acre lake in Sudbury District, Ontario. The lake tops out around 105 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. Species by species, here's what the data says the year looks like.
Drawn out, this is 261 acres of water rimmed by 8.9 miles of bank — one island included. That shoreline is heavily fingered (development index 4) — bays, points and pockets everywhere, which multiplies the fishable edge. 58% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. The basin spans about 1.9 mi end to end and 1.2 mi across at its widest. You'll find it in Sudbury District. The nearest mapped water is Marguerite Lake, 2 mi to the west.
Spring puts lake trout in skinny water — 10 to 40 ft is the zone. Warm water sends them out to 32 to 105 ft; cold water stacks them in 20 to 80 ft. Deep basin is the standout, a deep basin at roughly 89 ft, rated prime for summer lake trout. Plan around early morning in the warm months. A white tube jig (deep) or a magnum spoon on downrigger covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (26 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 32 to 105 ft | dawn | Deep basin (89 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (26 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (47 ft) | White tube jig, Airplane jig |
Early season lake whitefish use the shallows, holding in 15 to 45 ft. Summer is a 40 to 90 ft game here, winter a 25 to 70 ft one. The chart's best answer is Deep basin — deep basin, 89 ft, prime for summer. Best bite is early morning. Tie on a blade bait vertical or a small jigging spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (47 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Deep basin (89 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Main-lake point (26 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Break off the point (47 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Early season cisco (lake herring) use the shallows, holding in 10 to 40 ft. Summer is a 40 to 80 ft game here, winter a 20 to 60 ft one. The chart's best answer is Deep basin — deep basin, 89 ft, prime for summer. Best bite is early morning. Tie on a vertical flutter spoon (small) or a drop-shot micro plastic and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Deep basin (89 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Deep basin (89 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Break off the point (47 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring puts burbot in skinny water — 25 to 70 ft is the zone. Warm water sends them out to 32 to 105 ft; cold water stacks them in 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 89 ft, rated prime for summer burbot. Plan around after dark and midday in the warm months. A heavy jig + cut bait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (47 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 32 to 105 ft | night & midday | Deep basin (89 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Deep basin (89 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Break off the point (47 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 89 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Bluewater Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Bluewater Lake is about 105 ft (32 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target lake trout, lake whitefish, cisco (lake herring), burbot on Bluewater Lake.
Deep basin is the top-rated area: a deep basin in about 89 ft of water that rates prime for lake trout in summer. 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 Bluewater Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Marguerite Lake 2 mi · Franklin Lake 4 mi · Pibroch Lake 4 mi · Len Lake 4 mi · Georgia Lake 5 mi · Kennedy Lake 6 mi · Charcoal Lake 6 mi · Key L. 6 mi · Marion L. 6 mi · Rushbrook Lake 7 mi · Gilbert Lake 8 mi · Shoe L. 8 mi
See how Bluewater Lake stacks up: best lake trout lakes in Ontario · best lake whitefish lakes in Ontario · best burbot lakes in Ontario · best cisco (lake herring) lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps or see every water on DepthScout. 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.