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99-acre lake in Cochrane District, Ontario. The lake tops out around 3 ft. The depth data here comes from the Ontario MNRF survey of 1963, a decades-old survey (a transect sounding survey). The rest of this page walks each species through its year, using the map's own scoring.
Drawn out, this is 99 acres of water rimmed by 2.2 miles of bank — one island included. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Call it 0.8 mi long by 0.4 mi wide at the broadest reach. You'll find it in Cochrane District. Closest neighbour on DepthScout: Gravel Pit L., 4 mi northeast of here.
In spring, brook trout run shallow here, mostly 1 to 3 ft. Summer keeps them at 1 to 3 ft, and they winter in 1 to 3 ft. Deep basin is the standout, a deep basin at roughly 3 ft, rated prime for summer brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 3 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 1 to 3 ft | dawn & dusk | Deep basin (3 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 3 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 1 to 3 ft | dawn | Deep basin (3 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 6 structure marks on this chart. The deepest, Shallow bay flat, sits near 3 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 Mowbray Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Mowbray Lake is about 3 ft (1 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1963, a decades-old survey (a transect sounding survey).
Anglers target brook trout on Mowbray Lake.
Deep basin is the top-rated area: a deep basin in about 3 ft of water that rates prime for brook trout in summer. 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 Mowbray 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.
Gravel Pit L. 4 mi · Boyle Lake 5 mi · Boyle Lake 36 5 mi · Boyle 10 L. 8 mi · Boyle 11 L. 8 mi · Boyle 12 L. 8 mi · Boyle 8 Lake 8 mi · Guilfoyle No. 69 8 mi · Howells L. 6 9 mi · Guilfoyle Lake 64 9 mi · Overhill L. 9 mi · Bennet Lake 9 mi
See how Mowbray Lake stacks up: best brook trout lakes in Ontario
More water nearby: Cochrane District fishing maps (673 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.