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25-acre lake in Thunder Bay District, Ontario. The lake tops out around 59 ft. The depth data here comes from the Ontario MNRF survey of 2003 (an MNRF lake survey). Here's the year, species by species, as the scoring engine sees it.
The drawn water covers 25 acres wrapped in 0.9 miles of bank. A shoreline index of 1.4 says round and simple: fish relate to depth changes here, not shoreline features. The shallow band under 15 ft claims about 11% of the surface — that's where the groceries are. End to end it runs roughly 0.3 mi, about 0.3 mi across. It sits in Thunder Bay District. Oliver Lake sits 1 mi southwest — the closest neighbouring chart.
Spring brook trout on Chub Lake 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 Shallow bay flat — feeding flat, 11 ft, good for spring. 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 | Shallow bay flat (11 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | open water | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (11 ft) | Small jigging spoon, Tungsten jig + plastic |
Structure-wise the chart holds 4 features, led in depth by Deep basin at roughly 59 ft.
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 Chub Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Chub Lake is about 59 ft (18 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2003 (an MNRF lake survey).
Anglers target brook trout on Chub Lake.
Shallow bay flat is the top-rated area: a feeding flat in about 11 ft of water that rates good for brook trout in spring. Every other rated spot, per species and season, is on the map above.
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 Chub 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.
Oliver Lake 1 mi · Cloud Lake 10 mi · Loch Lomond 11 mi · Kaministiquia River 12 mi · Bell Lake 14 mi · Fallingsnow Lake 14 mi · Matson Lake 14 mi · Marks Lake 15 mi · Echo Lake 15 mi · Pete Lake 15 mi · Bearpad Lake 15 mi · Crystal Lake 16 mi
See how Chub Lake stacks up: best brook trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 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.