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Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
174-acre lake in Timiskaming District, Ontario. The lake tops out around 156 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. Here's the year, species by species, as the scoring engine sees it.
On the chart, Roosevelt Lake draws 175 acres inside 3.8 miles of shoreline. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 50% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 1.2 mi long by 0.5 mi wide at the broadest reach. The water lies in Timiskaming District. Closest neighbour on DepthScout: Prud'homme Lake, 1 mi east of here.
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Summer pushes them deeper, 50 to 120 ft, and winter fish settle into 20 to 80 ft. The spot to know is Main-lake point, a point in about 39 ft of water that rates prime for lake trout in spring. Warm-month bites cluster around early morning. Throw a white tube jig (deep) or a magnum spoon on downrigger until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (39 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Deep basin (133 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (39 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (70 ft) | White tube jig, Airplane jig |
6 pieces of structure are mapped here — Deep basin, around 133 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 Roosevelt Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Roosevelt Lake is about 156 ft (48 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 Roosevelt Lake.
Main-lake point is the top-rated area: a point in about 39 ft of water that rates prime for lake trout in spring. Every other rated spot, per species and season, is on the map above.
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 Roosevelt 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.
Prud'homme Lake 1 mi · Johnson Lake 2 mi · Rib Lake 3 mi · Hearst Lake 3 mi · Hound Chute Lake 3 mi · Rory Lake 3 mi · Gillies Limit L. 19 3 mi · Whitney Lake 4 mi · Friday Lake 4 mi · Island Lake 4 mi · Pine Lake 5 mi · Mud Lake 5 mi
See how Roosevelt 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.