Louise Lake Depth Map & Fishing Spots (Sudbury District, ON)

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Lake depth chart

Louise Lake, ON

Max 12 ft

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Where to start

Fall shiner run window is on — see the hatch outlook

Hatch outlook

Fall shiner runActive window

Typical here: Sep 1 – Oct 31 · same push on the Ontario side — Simcoe's shiners migrate shallow as the water cools, and the predators ride with them

adultdaylight for the jig bite; after dark the shiners stack under dock lights with walleyes and pike mixed right in — follow the bait, not the spot — millions of shiners move together and the predators ride with them; silver profile and flash matter

Concentrates hard but travels — the school (and the walleyes under it) can be off a river mouth one week and miles upriver the next.

Jig-and-minnow is the event's signature — a frozen emerald shiner on a 1/4 oz jig drifted along the run; silver jerkbaits and trolled crankbaits take the roaming fish; blade baits under the schools.

The event happens over river mouths and the first miles upriver, warming shallow shorelines, and rocky points where the displaced bait stacks

Next on this water

June mayfly hatch (walleye lakes) · mayflyJun 1 – Aug 10 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

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Recent catches at Louise Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Louise Lake on the board.

Fishing Louise Lake: what the data says

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.

Northern Pike fishing at Louise Lake

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 prime 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.

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	dawn & dusk	Shallow bay flat (1 ft)	Bucktail, Weedless spoon over cabbage
Fall	4 to 12 ft	midday & dawn	Deep basin (7 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	4 to 12 ft	midday	Shallow bay flat (1 ft)	Tip-ups, Large jigging spoon

Notable structure

Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 7 ft.

Deep basin: deep basin, around 7 ft
Main-lake point: point, around 1 ft
Secondary point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft
Break off the point: drop-off, around 1 ft

Louise Lake fishing regulations

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 →

Common questions

How deep is Louise Lake?

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).

What fish are in Louise Lake?

Anglers target northern pike on Louise Lake.

Where is the best fishing spot on Louise Lake?

Shallow bay flat is the top-rated area: a weed flat in about 1 ft of water that rates prime for northern pike in spring. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Louise Lake?

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.

What are the fishing regulations for Louise Lake?

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.

Nearby waters

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

More water nearby: Sudbury District fishing maps (868 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.