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81-acre lake in Sudbury District, Ontario. The lake tops out around 12 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 1983 (an MNRF lake survey). Here's the year, species by species, as the scoring engine sees it.
Traced from the shoreline, Louise Lake runs 81 acres with 2.1 miles of edge. The shoreline is moderately structured (index 1.7) — 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. Figure 0.6 mi of water from one end to the other, 0.5 mi at the beam. The water lies in Sudbury District. Closest neighbour on DepthScout: Poulin Lake, 2 mi northwest of here.
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Summer pushes them deeper, 4 to 12 ft, and winter fish settle into 4 to 12 ft. The spot to know is Shallow bay flat, a weed flat in about 1 ft of water that rates good for northern pike in spring. 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 | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 4 to 12 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (1 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 4 to 12 ft chart-limited; documented 6 to 18 ft | midday & dawn | Deep basin (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 4 to 12 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Early season lake whitefish use the shallows, holding in 4 to 12 ft. Even in summer they hold at 4 to 12 ft; winter keeps them in 4 to 12 ft. Put Deep basin first on the milk run — a deep basin near 7 ft that grades prime for summer. In summer the feeding windows fall in early morning. Tie on a blade bait vertical or a small jigging spoon 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 | 4 to 12 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (1 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 4 to 12 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (7 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 3 to 12 ft chart-limited; documented 8 to 30 ft | dusk | Break off the point (1 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 4 to 12 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (7 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 7 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 Louise Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Louise Lake is about 12 ft (4 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1983 (an MNRF lake survey).
Anglers target northern pike, lake whitefish on Louise Lake.
Deep basin is the top-rated area: a deep basin in about 7 ft of water that rates prime for lake whitefish in summer. Every other rated spot, per species and season, is on the map above.
For northern pike, 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 Louise 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.
Poulin Lake 2 mi · Seven Mile Lake 3 mi · Chappise L. 8 3 mi · Ruth Lake 3 mi · Trap Lake 3 mi · Olympic Lake 3 mi · Trap Creek 3 mi · McLennan Lake 3 mi · Moodie Lake 4 mi · Corner L. 4 mi · Pack Sack Lake 4 mi · Nemegos Lake 4 mi
See how Louise Lake stacks up: best northern pike lakes in Ontario · best lake whitefish lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps. See every water on DepthScout. Depth data: Ontario Ministry of Natural Resources and Forestry, Lake survey data (Open Government Licence – Ontario). 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.