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Rating depth structure for brook trout.
Recent public catches load as you reach this section.
46-acre lake in Algoma District, Ontario. The lake tops out around 58 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. What the data behind the map says about each species, season by season:
Drawn out, this is 46 acres of water rimmed by 1.5 miles of bank. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. About 35% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 0.5 mi of water from one end to the other, 0.3 mi at the beam. The water lies in Algoma District. The nearest mapped water is Vixen Lake, 1 mi to the north.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. Summer brook trout concentrate at Break off the point, a prime-rated drop-off around 26 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (15 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (26 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (15 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (6 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 3 to 12 ft, and winter fish settle into 10 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated prime for spring brown bullhead. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (6 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (6 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (6 ft) | |
| Winter | 10 to 25 ft | midday | open water |
6 pieces of structure are mapped here — Deep basin, around 49 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 Boat Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Boat Lake is about 58 ft (18 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 brook trout, brown bullhead on Boat Lake.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for brown bullhead in spring. The map above holds the full rated-spot list for every species and season.
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Boat 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.
Vixen Lake 1 mi · Deer Lake 1 mi · Whitman Lake 2 mi · Paquette Lake 2 mi · Fern Lake 3 mi · Devil's Lake 3 mi · Metivier Lake 5 mi · Castleman Lake 5 mi · Strums Lake 5 mi · Leishman Lake 6 mi · Roussain Lake 6 mi · Garden Lake 8 mi
See how Boat Lake stacks up: best brook trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario fishing maps. 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.