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75-acre lake in Algoma District, Ontario. The lake tops out around 59 ft. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey). Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Rainy Lake runs 76 acres with 4.3 miles of edge, broken up by 2 islands. That shoreline is heavily fingered (development index 3.5) — bays, points and pockets everywhere, which multiplies the fishable edge. About 46% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. End to end it runs roughly 1.4 mi, about 0.4 mi across. You'll find it in Algoma District. For a second option, Smoky Lake lies 1 mi northeast.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. Main-lake point is the standout, a point at roughly 4 ft, rated prime for spring brook trout. Time it for early morning and the evening. 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 (4 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (4 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (4 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (4 ft) | Small jigging spoon, Tungsten jig + plastic |
6 pieces of structure are mapped here — Deep basin, around 57 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 Rainy Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Rainy Lake is about 59 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey).
Anglers target brook trout on Rainy Lake.
Main-lake point is the top-rated area: a point in about 4 ft of water that rates prime for brook trout in spring. The interactive chart above rates every spot for each 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 Rainy 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.
Smoky Lake 1 mi · Toodee Lake 1 mi · Hyslop Lake 2 mi · Finn Lake 3 mi · Leejacks Lake 3 mi · Spot Lake 3 mi · Maquire L. 3 mi · Seymour Lake 3 mi · Town Line Lake 4 mi · Wye Lake 5 mi · Skating Logger Lake 5 mi · Three Lakes 5 mi
See how Rainy Lake stacks up: best brook trout lakes in Ontario
More water nearby: Algoma District fishing maps (1026 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.