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229-acre lake in Algoma District, Ontario. The lake tops out around 110 ft. The depth data here comes from the Ontario MNRF survey of 1966, a decades-old survey (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
On the chart, Tenfish Lake draws 230 acres inside 3.1 miles of shoreline, broken up by an island. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. About 13% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 1.1 mi long by 0.6 mi wide at the broadest reach. You'll find it in Algoma District. For a second option, Vasseau Lake lies 1 mi north.
Spring puts lake trout in skinny water — 10 to 40 ft is the zone. Warm water sends them out to 33 to 110 ft; cold water stacks them in 20 to 80 ft. Deep basin is the standout, a deep basin at roughly 110 ft, rated prime for summer lake trout. Plan around early morning in the warm months. A white tube jig (deep) or a magnum spoon on downrigger covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Secondary point (25 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 33 to 110 ft | dawn | Deep basin (110 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Secondary point (25 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (54 ft) | White tube jig, Airplane jig |
Tenfish Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 110 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 Tenfish Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Tenfish Lake is about 110 ft (34 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1966, a decades-old survey (a transect sounding survey).
Anglers target lake trout on Tenfish Lake.
Deep basin is the top-rated area: a deep basin in about 110 ft of water that rates prime for lake trout in summer. The interactive chart above rates every spot for each 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 Tenfish 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.
Vasseau Lake 1 mi · No Peer Lake 1 mi · Bevans Lake 1 mi · Cobre Lake 1 mi · Bhymine Lake 2 mi · Cabin Lake 3 mi · Mount Lake 3 mi · Winchester Lake 3 mi · Mikel Lake 3 mi · Ellisam Lake 3 mi · Sam Lake 4 mi · Stewleen Lake 4 mi
See how Tenfish Lake stacks up: best lake 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.