Louise Lake Depth Map & Fishing Spots (Grey County, ON)

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Lake depth chart

Louise Lake, ON

Max 11 ft

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Where to start

Hopper & ant season (windward banks) window is on — see the hatch outlook

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

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

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

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 on this water are approximations. 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

89-acre lake in Grey County, Ontario. The lake tops out around 11 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What the data behind the map says about each species, season by season:

Louise Lake maps at 88 acres behind 2.2 miles of shoreline. With a 1.7 development index there's bank structure worth casting at, in moderation. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. Tip to tip the water measures near 0.6 mi with a 0.5-mi widest point. It sits in Grey County. If the bite dies, North Louise Lake is 0 mi to the north.

Smallmouth Bass fishing at Louise Lake

Come spring, look for smallmouth bass tight to the bank in 3 to 11 ft. Through summer count on 3 to 11 ft; the winter hold is 3 to 11 ft. If you only fish one area, make it Main-lake point: a point around 8 ft that scores prime in fall. Best bite is early morning and the evening. A drop shot (goby/minnow) or a ned rig is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 11 ft	dawn & dusk	Main-lake point (8 ft)	Ned rig, Tube jig
Summer	3 to 11 ft	dawn & dusk	Break off the point (5 ft)	Drop shot (goby/minnow), Ned rig
Fall	3 to 11 ft	midday & dawn	Main-lake point (8 ft)	Jerkbait, Blade bait
Winter	3 to 11 ft	midday	Break off the point (5 ft)	Blade bait, Hair jig

Rock Bass fishing at Louise Lake

The spring pattern is a shallow one: rock bass in 2 to 10 ft. As the season builds they drop to 3 to 11 ft, wintering in 3 to 11 ft. Top water on the chart: Main-lake point, a point in the 8 ft range, prime in summer. Time it for the evening. Summer baits: a ned rig (small) or a marabou jig gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	midday & dawn	Main-lake point (8 ft)	1/16 oz jig + grub, Small inline spinner
Summer	3 to 11 ft	dusk	Main-lake point (8 ft)	Ned rig (small), Marabou jig
Fall	3 to 11 ft	midday	Break off the point (5 ft)	Small tube jig, Inline spinner
Winter	3 to 11 ft	midday	Deep basin (9 ft)	Tungsten jig + plastic, Small spoon + spike

Notable structure

The chart marks 6 structure features on Louise Lake; the deepest is Deep basin at about 9 ft.

Deep basin: deep basin, around 9 ft
Main-lake point: point, around 8 ft
Secondary point: point, around 8 ft
Break off the point: drop-off, around 5 ft
Shallow bay flat: weed flat, around 3 ft
Back-bay flat: weed flat, around 3 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 11 ft (3 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.

What fish are in Louise Lake?

Anglers target smallmouth bass, rock bass on Louise Lake.

Where is the best fishing spot on Louise Lake?

Main-lake point is the top-rated area: a point in about 8 ft of water that rates prime for smallmouth bass in fall. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Louise Lake?

For smallmouth bass, 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

North Louise Lake 0 mi · Boyd Lake 1 mi · Copps Lake 1 mi · Welbeck Mill Pond 3 mi · Sullivan L. F 4 mi · Sullivan L. E 4 mi · Harrison Lake 5 mi · Habermehl Lake 5 mi · Sullivan L. D1 5 mi · Tobermory Lake 6 mi · McCullough Lake 6 mi · Westfall's Lake 6 mi

See how Louise Lake stacks up: best smallmouth bass 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. 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.