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18-acre lake in Algoma District, Ontario. The lake tops out around 48 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. The rest of this page walks each species through its year, using the map's own scoring.
Foucault L. 10 maps at 18 acres behind 1 miles of shoreline. With a 1.7 development index there's bank structure worth casting at, in moderation. Roughly 42% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 0.4 mi. It sits in Algoma District. Gervais L. 1 sits 0 mi north — the closest neighbouring chart.
Spring brook trout on Foucault L. 10 hold shallow, usually 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. The chart's best answer is Break off the point — drop-off, 22 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (12 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (22 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (12 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (6 ft) | Small jigging spoon, Tungsten jig + plastic |
Foucault L. 10 carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 41 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 Foucault L. 10 specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Foucault L. 10 is about 48 ft (15 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 Foucault L. 10.
Break off the point is the top-rated area: a drop-off in about 22 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 Foucault L. 10 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.
Gervais L. 1 0 mi · Fifty-five Mile Lake 1 mi · Jeanne Lake 3 mi · Gervais L. 9 3 mi · Jackson Lake 4 mi · Gervais L. 11 4 mi · Supple Lake 4 mi · Lidstone Lake 5 mi · Airport Lake 5 mi · Barn Lake 5 mi · Foucault L. 42 5 mi · Armstrong Lake 5 mi
See how Foucault L. 10 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. 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.