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Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
95-acre lake in Haliburton County, Ontario. The lake tops out around 40 ft. This chart interpolates between a real shoreline and a known maximum depth. It will point you at likely water, but it is not a navigation product. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 95 acres, worked by 2.8 miles of shoreline. A middling shoreline index (2) gives it some bays to work without being a maze. 67% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Call it 0.9 mi long by 0.4 mi wide at the broadest reach. Haliburton County claims this one. Fraser Lake sits 1 mi east — the closest neighbouring chart.
Spring lake trout on Sylvia Lake hold shallow, usually 10 to 40 ft. Depth-wise the year is flat: 12 to 40 ft in summer, 10 to 40 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 34 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.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 12 to 40 ft | dawn | Deep basin (34 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 8 to 40 ft | dusk & dawn | Main-lake point (10 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 10 to 40 ft | dawn | Deep basin (34 ft) | White tube jig, Airplane jig |
Sylvia Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 34 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 Sylvia Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sylvia Lake is about 40 ft (12 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 Sylvia Lake.
Deep basin is the top-rated area: a deep basin in about 34 ft of water that rates prime for lake trout in summer. 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 Sylvia 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.
Fraser Lake 1 mi · Gordon Lake 2 mi · Aubrey Lake 2 mi · Rosepond Lake 2 mi · Pinetree Lake 2 mi · Rock Lake 2 mi · Jean Lake 3 mi · Fork Lake 3 mi · Raccoon Lake 3 mi · Bud Lake 3 mi · Norway Lake 4 mi · Clarke Lake 4 mi
See how Sylvia Lake stacks up: best lake trout lakes in Ontario
More water nearby: Haliburton County fishing maps (295 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.