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28-acre lake in Sudbury District, Ontario. The lake tops out around 9 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 a transect sounding survey by the Ontario MNRF. Here is how the season plays out for each species, straight from the data behind the map.
Traced from the shoreline, The Three Lakes runs 29 acres with 1.5 miles of edge — 2 islands included. The shoreline is moderately structured (index 2.1) — enough points and pockets to pattern. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. End to end it runs roughly 0.5 mi, about 0.2 mi across. The water lies in Sudbury District. Closest neighbour on DepthScout: Burke Lake, 2 mi northeast of here.
Come spring, look for yellow perch tight to the bank in 2 to 9 ft. Through summer count on 3 to 9 ft; the winter hold is 3 to 9 ft. Start at Deep basin. It's a deep basin holding about 8 ft of water and rates prime come fall. Prime time lands in early morning. A drop-shot micro plastics or a small spoon tipped with worm is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 9 ft chart-limited; documented 3 to 12 ft | midday & dawn | open water | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 9 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (8 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 9 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (8 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 9 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (8 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Summer pushes them deeper, 3 to 9 ft, and winter fish settle into 3 to 9 ft. The spot to know is Break off the point, a drop-off in about 4 ft of water that rates prime for northern pike in fall. Warm-month bites cluster around early morning and the evening. Throw a bucktail or a weedless spoon over cabbage until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | open water | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 9 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Break off the point (4 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 9 ft chart-limited; documented 6 to 18 ft | midday & dawn | Break off the point (4 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 9 ft chart-limited; documented 5 to 15 ft | midday | Secondary point (4 ft) | Tip-ups, Large jigging spoon |
Start shallow in spring: smallmouth bass sit in 2 to 9 ft that time of year. They don't go far with the seasons — 3 to 9 ft covers summer, 3 to 9 ft covers winter. The spot to know is Secondary point, a point in about 4 ft of water that rates prime for smallmouth bass in fall. Warm-month bites cluster around early morning and the evening. Throw a drop shot (goby/minnow) or a ned rig until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 9 ft chart-limited; documented 3 to 12 ft | dawn & dusk | Main-lake point (2 ft) | Ned rig, Tube jig |
| Summer | 3 to 9 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (4 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 3 to 9 ft chart-limited; documented 8 to 25 ft | midday & dawn | Secondary point (4 ft) | Jerkbait, Blade bait |
| Winter | 3 to 9 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (4 ft) | Blade bait, Hair jig |
Early season rock bass use the shallows, holding in 2 to 9 ft. Even in summer they hold at 2 to 9 ft; winter keeps them in 3 to 9 ft. Put Main-lake point first on the milk run — a point near 2 ft that grades prime for summer. In summer the feeding windows fall in the evening. Tie on a ned rig (small) or a marabou jig and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 9 ft chart-limited; documented 2 to 10 ft | midday & dawn | Main-lake point (2 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 2 to 9 ft chart-limited; documented 5 to 20 ft | dusk | Main-lake point (2 ft) | Ned rig (small), Marabou jig |
| Fall | 3 to 9 ft chart-limited; documented 8 to 22 ft | midday | Break off the point (4 ft) | Small tube jig, Inline spinner |
| Winter | 3 to 9 ft chart-limited; documented 12 to 30 ft | midday | Deep basin (8 ft) | Tungsten jig + plastic, Small spoon + spike |
Early season pumpkinseed use the shallows, holding in 1 to 8 ft. Expect a summer slide to 2 to 9 ft, then a winter hold in 3 to 9 ft. Put Deep basin first on the milk run — a deep basin near 8 ft that grades prime for winter. In summer the feeding windows fall in the evening and early morning. Tie on a micro tube or a sponge spider (fly) and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | open water | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 9 ft chart-limited; documented 2 to 10 ft | dusk & dawn | open water | Micro tube, Sponge spider (fly) |
| Fall | 3 to 9 ft chart-limited; documented 4 to 14 ft | dusk & dawn | Break off the point (4 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 9 ft chart-limited; documented 6 to 18 ft | dawn | Deep basin (8 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 2 to 9 ft, and winter fish settle into 3 to 9 ft. Deep basin is the standout, a deep basin at roughly 8 ft, rated prime for winter brown bullhead. Time it for after dark and the evening.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | open water | |
| Summer | 2 to 9 ft chart-limited; documented 3 to 12 ft | night & dusk | Deep basin (8 ft) | |
| Fall | 3 to 9 ft chart-limited; documented 5 to 15 ft | dusk | Deep basin (8 ft) | |
| Winter | 3 to 9 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (8 ft) |
The chart marks 4 structure features on The Three Lakes; the deepest is Deep basin at about 8 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 The Three Lakes specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
The Three Lakes is about 9 ft (3 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target yellow perch, northern pike, smallmouth bass, rock bass, pumpkinseed, brown bullhead on The Three Lakes. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species Ontario's MNRF recorded in the nearest surveyed lakes, filtered to this lake's depth and habitat.
Deep basin is the top-rated area: a deep basin in about 8 ft of water that rates prime for yellow perch in fall. Scroll up to the map for the complete spot list by species and season.
For yellow perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on The Three Lakes 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.
Burke Lake 2 mi · Cave Lake 3 mi · Acid Lake 4 mi · Lumsden Lake 4 mi · Muriel Lake 5 mi · Teardrop Lake 5 mi · A.Y. Jackson Lake 6 mi · George Lake 6 mi · O.S.A. Lake 6 mi · Bodina Lake 6 mi · Low Lake 6 mi · Helen Lake 7 mi
See how The Three Lakes stacks up: best smallmouth bass lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best rock bass lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps. 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.