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Fishing Le Grou Lake: what the data says
320-acre lake near Ontario. The lake tops out around 53 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Cisco (Lake Herring) fishing at Le Grou Lake
In spring, cisco (lake herring) run shallow here, mostly 10 to 40 ft. Summer pushes them deeper, 16 to 53 ft, and winter fish settle into 16 to 53 ft. Deep basin is the standout, a deep basin at roughly 45 ft, rated prime for summer cisco (lake herring). Best bite is early morning. Tie on a vertical flutter spoon (small) or a drop-shot micro plastic and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 16 to 53 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 16 to 53 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Walleye fishing at Le Grou Lake
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Summer pushes them deeper, 15 to 35 ft, and winter fish settle into 20 to 40 ft. Break off the point is the standout, a drop-off at roughly 24 ft, rated prime for fall walleye. Plan around the evening and early morning in the warm months. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Yellow Perch fishing at Le Grou Lake
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. In summer the feeding windows fall in early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Smallmouth Bass fishing at Le Grou Lake
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 20 to 45 ft. Main-lake point is the standout, a point at roughly 13 ft, rated prime for fall smallmouth bass. In summer the feeding windows fall in early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Blade bait, Hair jig |
Largemouth Bass fishing at Le Grou Lake
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. By summer they slide out to 8 to 20 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Blade bait, Jigging spoon |
Rock Bass fishing at Le Grou Lake
Spring rock bass on Le Grou Lake hold shallow, usually 2 to 10 ft. Summer pushes them deeper, 5 to 20 ft, and winter fish settle into 12 to 30 ft. The spot to know is Main-lake point, a point in about 13 ft of water that rates prime for rock bass in summer. Best bite is the evening. Summer baits: a ned rig (small) or a marabou jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Tungsten jig + plastic, Small spoon + spike |
Le Grou Lake also holds pumpkinseed (2 to 10 ft in summer), burbot (16 to 53 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Deep basin: deep basin, around 45 ft
- Break off the point: drop-off, around 24 ft
- Main-lake point: point, around 13 ft
- Secondary point: point, around 13 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Le Grou Lake?
Le Grou Lake is about 53 ft 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 Le Grou Lake?
Anglers target largemouth bass, smallmouth bass, walleye, yellow perch, burbot, rock bass, cisco (lake herring), pumpkinseed on Le Grou Lake.
Where is the best fishing spot on Le Grou Lake?
Deep basin is the top-rated area: a deep basin in about 45 ft of water that rates prime for cisco (lake herring) in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Le Grou Lake?
For cisco (lake herring), 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.
Nearby waters
Seagull Lake · Long Lake · Milton Lake · Culin Lake · Duck Lake · Hampel Lake
See how Le Grou Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best yellow perch lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.