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Fishing Foucault L. 10: what the data says
18-acre lake near Ontario. The lake tops out around 48 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Brook Trout fishing at Foucault L. 10
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. Break off the point is the standout, a drop-off at roughly 22 ft, rated prime for summer brook trout. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Notable structure
- Deep basin: deep basin, around 41 ft
- Break off the point: drop-off, around 22 ft
- Main-lake point: point, around 12 ft
- Shallow bay flat: weed flat, around 6 ft
Common questions
How deep is Foucault L. 10?
Foucault L. 10 is about 48 ft 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.
What fish are in Foucault L. 10?
Anglers target brook trout on Foucault L. 10.
Where is the best fishing spot 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.
When is the best time to fish Foucault L. 10?
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.
Nearby waters
Gervais L. 1 · Fifty-five Mile Lake · Jeanne Lake · Jackson Lake · Gervais L. 9 · Armstrong Lake
See how Foucault L. 10 stacks up: best brook trout lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.