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105-acre lake in Nipissing District, Ontario. The lake tops out around 41 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Teesdale Lake draws 107 acres inside 2.6 miles of shoreline — one island included. Index 1.8 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 51% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. The basin spans about 0.7 mi end to end and 0.6 mi across at its widest. You'll find it in Nipissing District. For a second option, Cahill Lake lies 1 mi northwest.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. As the season builds they drop to 10 to 30 ft, wintering in 3 to 20 ft. Top water on the chart: Break off the point, a drop-off in the 18 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (10 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (18 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (10 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (18 ft) | Small jigging spoon, Tungsten jig + plastic |
Teesdale Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 35 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 Teesdale Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Teesdale Lake is about 41 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 brook trout on Teesdale Lake.
Break off the point is the top-rated area: a drop-off in about 18 ft of water that rates prime for brook trout in summer. Open the map above to see every rated 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 Teesdale 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.
Cahill Lake 1 mi · Olmstead Lake 1 mi · Perron Lake 2 mi · Chime Lake 2 mi · Gauvreau Lake 2 mi · Talon Lake 3 mi · Bell Lake 3 mi · Green Lake 4 mi · Glassy Lake 4 mi · Wright Lake 4 mi · James Lake 5 mi · Pine Lake 5 mi
See how Teesdale Lake stacks up: best brook trout lakes in Ontario
More water nearby: Nipissing District fishing maps (683 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.