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Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
132-acre lake in Timiskaming District, Ontario. The lake tops out around 110 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Hearst Lake draws 132 acres inside 4.2 miles of shoreline. That shoreline is heavily fingered (development index 2.6) — bays, points and pockets everywhere, which multiplies the fishable edge. Roughly 56% of the water is 15 ft or less as modeled, the band where the food chain lives. Tip to tip the water measures near 1.1 mi with a 0.7-mi widest point. The water lies in Timiskaming District. For a second option, Johnson Lake lies 2 mi south.
In spring, lake trout run shallow here, mostly 10 to 40 ft. Summer pushes them deeper, 33 to 110 ft, and winter fish settle into 20 to 80 ft. Deep basin is the standout, a deep basin at roughly 94 ft, rated prime for summer lake trout. Time it for early morning. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (28 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 33 to 110 ft | dawn | Deep basin (94 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (28 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (50 ft) | White tube jig, Airplane jig |
Hearst Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 94 ft down.
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 Hearst Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Hearst Lake is about 110 ft (34 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 on Hearst Lake.
Deep basin is the top-rated area: a deep basin in about 94 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 Hearst 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.
Johnson Lake 2 mi · Gillies Limit L. 19 2 mi · Hound Chute Lake 2 mi · Island Lake 3 mi · Roosevelt Lake 3 mi · Mud Lake 4 mi · South Coleman Lake 4 mi · Prud'homme Lake 4 mi · Little Gillies Lake 4 mi · Best Lake 5 mi · Head Lake 5 mi · Bass Lake 5 mi
See how Hearst Lake stacks up: best lake trout lakes in Ontario
More water nearby: Timiskaming District fishing maps (515 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.