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8,394-acre lake in Thunder Bay District, Ontario. The lake tops out around 53 ft. The depth data here comes from the Ontario MNRF survey of 1977, a decades-old survey (a transect sounding survey). Every species below gets its seasonal read from the same numbers driving the chart.
Attwood Lake maps at 8,432 acres behind 82.3 miles of shoreline, broken up by 60 islands. An index of 6.4 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. 71% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 12.8 mi, about 4 mi across. It sits in Thunder Bay District. Weese Lake sits 5 mi west — the closest neighbouring chart.
Early season lake trout use the shallows, holding in 10 to 40 ft. Expect a summer slide to 16 to 53 ft, then a winter hold in 13 to 53 ft. Put Deep basin first on the milk run — a deep basin near 52 ft that grades prime for summer. In summer the feeding windows fall in early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Sharp break (20 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 16 to 53 ft | dawn | Deep basin (52 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Shoreline point (7 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 13 to 53 ft | dawn | Deep basin (52 ft) | White tube jig, Airplane jig |
Spring puts lake whitefish in skinny water — 15 to 45 ft is the zone. As the season builds they drop to 16 to 53 ft, wintering in 16 to 53 ft. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 52 ft. Warm-month bites cluster around early morning. A blade bait vertical or a small jigging spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Sharp break (42 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 16 to 53 ft | dawn | Deep basin (52 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Sharp break (20 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 16 to 53 ft | midday & dawn | Deep basin (52 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Warm water sends them out to 15 to 35 ft; cold water stacks them in 20 to 40 ft. Top water on the chart: Sharp break, a drop-off in the 20 ft range, prime in fall. Fish it in the evening and early morning and you'll meet the bite. Throw a crawler harness on bottom bouncer or a deep crankbait (trolled) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Shoreline point (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Sharp break (20 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Sharp break (20 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Sharp break (20 ft) | Jigging spoon + minnow head, Rattle bait |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 10 to 30 ft; cold water stacks them in 15 to 35 ft. Weed flat is the standout, a weed flat at roughly 4 ft, rated prime for spring yellow perch. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Weed flat (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Sharp break (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Sharp break (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Sharp break (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on Attwood Lake hold shallow, usually 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. Put Weed flat first on the milk run — a weed flat near 4 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (4 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Sharp break (20 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Weed flat (4 ft) | Tip-ups, Large jigging spoon |
Early season burbot use the shallows, holding in 16 to 53 ft. Even in summer they hold at 16 to 53 ft; winter keeps them in 13 to 53 ft. Put Deep basin first on the milk run — a deep basin near 52 ft that grades prime for spring. In summer the feeding windows fall in after dark and midday. Tie on a heavy jig + cut bait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 16 to 53 ft | night & dusk | Deep basin (52 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 16 to 53 ft | night & midday | Deep basin (52 ft) | Heavy jig + cut bait |
| Fall | 16 to 53 ft | night & dusk | Deep basin (52 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 13 to 53 ft | night & dusk | Deep basin (52 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 14 features, led in depth by Deep basin at roughly 52 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 Attwood Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Attwood Lake is about 53 ft (16 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1977, a decades-old survey (a transect sounding survey).
Anglers target lake trout, lake whitefish, walleye, yellow perch, northern pike, burbot on Attwood Lake.
Deep basin is the top-rated area: a deep basin in about 52 ft of water that rates prime for lake trout in summer. Open the map above to see every rated 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 Attwood 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.
Weese Lake 5 mi · Hurst Lake 6 mi · Auger Lake 8 mi · Vick Lake 10 mi · Parkhill Lake 10 mi · Chipchase Lake 11 mi · Bellsmith Lake 11 mi · Luella Lake 12 mi · Walden Lake 13 mi · Faircloth Lake 14 mi · Morden Lake 16 mi · Ficht Lake 17 mi
See how Attwood Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best lake trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.