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90-acre lake in Cochrane District, Ontario. The lake tops out around 53 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 1979, a decades-old survey (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 92 acres wrapped in 2.9 miles of bank. A middling shoreline index (2.1) gives it some bays to work without being a maze. Roughly 88% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 0.8 mi, about 0.5 mi across. Cochrane District claims this one. Bryce Lake sits 1 mi east — the closest neighbouring chart.
Spring puts lake whitefish in skinny water — 15 to 45 ft is the zone. Warm water sends them out to 16 to 53 ft; cold water stacks them in 16 to 53 ft. Deep basin is the standout, a deep basin at roughly 43 ft, rated prime for summer lake whitefish. Plan around early morning in the warm months. A blade bait vertical or a small jigging spoon covers the summer program.
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 | 15 to 45 ft | midday & dawn | Break off the point (9 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 16 to 53 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (43 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (9 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 16 to 53 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (43 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring puts cisco (lake herring) in skinny water — 10 to 40 ft is the zone. Warm water sends them out to 16 to 53 ft; cold water stacks them in 16 to 53 ft. Deep basin is the standout, a deep basin at roughly 43 ft, rated prime for summer cisco (lake herring). Plan around early morning in the warm months. A vertical flutter spoon (small) or a drop-shot micro plastic covers the summer program.
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 | 10 to 40 ft | dawn & dusk | Deep basin (43 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 16 to 53 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (43 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (9 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 16 to 53 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (43 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring northern pike on Louise Lake hold shallow, usually 2 to 8 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. The chart's best answer is Back-bay flat — weed flat, 2 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Back-bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (9 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (9 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Main-lake point (7 ft) | Tip-ups, Large jigging spoon |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 43 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 53 ft (16 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (an MNRF lake survey).
Anglers target lake whitefish, cisco (lake herring), northern pike on Louise Lake.
Deep basin is the top-rated area: a deep basin in about 43 ft of water that rates prime for lake whitefish in summer. The map above holds the full rated-spot list for every species and season.
For lake whitefish, 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 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.
Bryce Lake 1 mi · Violin Lake 1 mi · Constance Lake 1 mi · Canary Lake 1 mi · West Lake 3 mi · Pike Lake 3 mi · Bluebelle Lake 4 mi · Samuel Lake 5 mi · Abram Lake 5 mi · Duckwing Lake 5 mi · Swift Lake 6 mi · Angelina Lake 6 mi
See how Louise Lake stacks up: best northern pike lakes in Ontario · best lake whitefish lakes in Ontario · best cisco (lake herring) lakes in Ontario
More water nearby: Cochrane District fishing maps (673 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.