Lake depth chart
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292-acre lake in Thunder Bay District, Ontario. The lake tops out around 105 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1981 (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 291 acres wrapped in 5.3 miles of bank, broken up by an island. The 2.2 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Roughly 50% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 1.5 mi, about 0.5 mi across. Thunder Bay District claims this one. If the bite dies, Edar Lake is 1 mi to the northwest.
Spring lake trout on Burnt Island Lake hold shallow, usually 10 to 40 ft. They move out to 32 to 105 ft in summer and finish the year down in 20 to 80 ft. Put Deep basin first on the milk run — a deep basin near 92 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a white tube jig (deep) or a magnum spoon on downrigger.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (27 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 32 to 105 ft chart-limited; documented 50 to 120 ft | dawn | Deep basin (92 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (27 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (27 ft) | White tube jig, Airplane jig |
Early season northern pike use the shallows, holding in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Put Shallow bay flat first on the milk run — a weed flat near 1 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow feeding flat (24 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (1 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Spring burbot on Burnt Island Lake hold shallow, usually 25 to 70 ft. They move out to 32 to 105 ft in summer and finish the year down in 15 to 60 ft. Put Deep basin first on the milk run — a deep basin near 92 ft that grades prime for summer. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (27 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 32 to 105 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (92 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Deep basin (92 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Break off the point (27 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
7 pieces of structure are mapped here — Deep basin, around 92 ft, is the deepest of them.
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 Burnt Island Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Burnt Island Lake is about 105 ft (32 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1981 (an MNRF lake survey).
Anglers target lake trout, northern pike, burbot on Burnt Island Lake.
Deep basin is the top-rated area: a deep basin in about 92 ft of water that rates prime for lake trout in summer. The map above holds the full rated-spot list for every 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 Burnt Island 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.
Edar Lake 1 mi · Chief Peter Lake 3 mi · Brûlé Lake 5 mi · Baril Lake 5 mi · Union Lake 6 mi · Bedivere Lake 7 mi · Windigoostigwan Lake 7 mi · Huronian Lake 8 mi · Rudge Lake 8 mi · Arbour Lake 8 mi · Fork Lake 9 mi · Elbow Lake 9 mi
See how Burnt Island Lake stacks up: best northern pike lakes in Ontario · best lake trout lakes in Ontario · best burbot lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.