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Shared by DepthScout anglers. Exact spots stay private, always.
200-acre lake in Algoma District, Ontario. The lake tops out around 50 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
On the chart, Cowie Lake draws 202 acres inside 5 miles of shoreline — one island included. A development index of 2.5 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 95% of the water is 15 ft or less, the band where the food chain lives. Figure 1.2 mi of water from one end to the other, 0.7 mi at the beam. The water lies in Algoma District. Closest neighbour on DepthScout: Poem L., 2 mi east of here.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. The spot to know is Break off the point, a drop-off in about 5 ft of water that rates prime for brook trout in winter. Plan around early morning and the evening in the warm months. 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 (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (5 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (5 ft) | Small jigging spoon, Tungsten jig + plastic |
Cowie Lake carries 7 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 40 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 Cowie Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Cowie Lake is about 50 ft (15 m) deep at its deepest point. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target brook trout on Cowie Lake.
Break off the point is the top-rated area: a drop-off in about 5 ft of water that rates prime for brook trout in winter. 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 Cowie 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.
Poem L. 2 mi · Ragged Lake 2 mi · Gaudry L. 21 (Moon L.) 2 mi · Nahwegezhic L. 2 2 mi · Private Lake 2 mi · Chubb Lake 3 mi · Morrison Lake 3 mi · Annibal Lake 3 mi · Nahwegezhic L. 4 3 mi · Point Lake 5 mi · Nahwegezhic L. 11 5 mi · Hanes Lake 5 mi
See how Cowie 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: published agency survey data. 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.