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Fishing Deuxième lac Inconnu: what the data says
18-acre lake near Québec. The lake tops out around 60 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
Carte de pêche interactive gratuite — Deuxième lac Inconnu, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 18 m (60 pi), les meilleurs sites pour doré jaune, grand brochet, perchaude et touladi, fenêtres d'activité saisonnières et choix d'appâts. Aucune inscription requise. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Walleye fishing at Deuxième lac Inconnu
In spring, walleye run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 15 to 35 ft, and winter fish settle into 20 to 40 ft. Shallow bay flat is the standout, a weed flat at roughly 16 ft, rated good for summer walleye. Best bite is the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| 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 |
Northern Pike fishing at Deuxième lac Inconnu
Spring northern pike on Deuxième lac Inconnu hold shallow, usually 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. The spot to know is Back-bay flat, a weed flat in about 10 ft of water that rates prime for northern pike in winter. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Yellow Perch fishing at Deuxième lac Inconnu
In spring, yellow perch run shallow here, mostly 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. Back-bay flat is the standout, a weed flat at roughly 10 ft, rated prime for spring yellow perch. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| 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) |
Lake Trout fishing at Deuxième lac Inconnu
Spring lake trout on Deuxième lac Inconnu hold shallow, usually 10 to 40 ft. They move out to 18 to 60 ft in summer and finish the year down in 15 to 60 ft. The spot to know is Deep basin, a deep basin in about 59 ft of water that rates prime for lake trout in summer. Plan around early morning in the warm months. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 18 to 60 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 15 to 60 ft | dawn | White tube jig, Airplane jig |
Lake Whitefish fishing at Deuxième lac Inconnu
In spring, lake whitefish run shallow here, mostly 15 to 45 ft. By summer they slide out to 18 to 60 ft, and by winter most fish are in 18 to 60 ft. If you only fish one area, make it Deep basin: a deep basin around 59 ft that scores prime in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 18 to 60 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 18 to 60 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
Notable structure
- Deep basin: deep basin, around 59 ft
- Shallow bay flat: weed flat, around 16 ft
- Back-bay flat: weed flat, around 10 ft
Common questions
How deep is Deuxième lac Inconnu?
Deuxième lac Inconnu is about 60 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Deuxième lac Inconnu?
Anglers target walleye, northern pike, yellow perch, lake trout, lake whitefish on Deuxième lac Inconnu.
Where is the best fishing spot on Deuxième lac Inconnu?
Back-bay flat is the top-rated area: a weed flat in about 10 ft of water that rates prime for northern pike in winter. Open the map above to see every rated spot for each species and season.
When is the best time to fish Deuxième lac Inconnu?
For walleye, the summer bite is best in the evening and 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
Lac de la Grosse Truite · Lac Simard · Lac Heart · Lac Vézina · Lac Sauvage · Lac du Caribou
See how Deuxième lac Inconnu stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec · best lake trout lakes in Québec
Browse all Québec fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.