Lake depth chart
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22-acre lake in Grey County, Ontario. The lake tops out around 20 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. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
Drawn out, this is 22 acres of water rimmed by 1.3 miles of bank. The shoreline is moderately structured (index 2) — enough points and pockets to pattern. About 96% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 0.4 mi long by 0.2 mi wide at the broadest reach. You'll find it in Grey County. The nearest mapped water is Bells Lake, 1 mi to the south.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 6 to 20 ft, and winter fish settle into 3 to 20 ft. Deep basin is the standout, a deep basin at roughly 19 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 | 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 20 ft | dawn & dusk | Deep basin (19 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (19 ft) | Small jigging spoon, Tungsten jig + plastic |
Early season rock bass use the shallows, holding in 2 to 10 ft. Summer is a 5 to 20 ft game here, winter a 6 to 20 ft one. The chart's best answer is Break off the point — drop-off, 12 ft, prime for fall. Best bite is the evening. Tie on a ned rig (small) or a marabou jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Main-lake point (2 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Break off the point (12 ft) | Ned rig (small), Marabou jig |
| Fall | 6 to 20 ft | midday | Break off the point (12 ft) | Small tube jig, Inline spinner |
| Winter | 6 to 20 ft | midday | Deep basin (19 ft) | Tungsten jig + plastic, Small spoon + spike |
Black's Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 19 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 Black's Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Black's Lake is about 20 ft (6 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (an MNRF lake survey).
Anglers target brook trout, rock bass on Black's Lake.
Break off the point is the top-rated area: a drop-off in about 12 ft of water that rates prime for rock bass in fall. Scroll up to the map for the complete spot list by 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 Black's 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.
Bells Lake 1 mi · Townsend Lake 3 mi · Town Pond 4 mi · Negro Lakes 5 mi · Hines Lake 6 mi · Irish Lake 7 mi · Tobermory Lake 7 mi · Harrison Lake 8 mi · Welbeck Mill Pond 9 mi · McCullough Lake 9 mi · Minkes Lake 9 mi · Sullivan L. D1 9 mi
See how Black's Lake stacks up: best brook trout lakes in Ontario · best rock bass lakes in Ontario
More water nearby: Grey County fishing maps (47 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.