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543-acre lake near Québec. The lake tops out around 33 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. Species by species, here's what the data says the year looks like.
Lac la Blanche maps at 543 acres behind 4.6 miles of shoreline — one island included. At index 1.4 the outline is almost a bowl — read the depth changes, not the shoreline. The shallow band under 15 ft claims about 78% of the surface — that's where the groceries are. Call it 1.9 mi long by 0.9 mi wide at the broadest reach. It sits in Le Domaine-du-Roy MRC. Lac Liasse sits 3 mi southeast — the closest neighbouring chart.
Carte de pêche interactive gratuite — Lac la Blanche, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 10 m (33 pi), et les meilleurs sites pour omble de fontaine, doré jaune, perchaude et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. Start at Break off the point. It's a drop-off holding about 4 ft of water and rates prime come winter. Prime time lands in early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 15 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 10 to 30 ft | dawn & dusk | Deep basin (33 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Hiver | 3 to 20 ft | dawn | Break off the point (4 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: walleye in 4 to 15 ft. Midsummer fish sit out in 10 to 33 ft before dropping to 10 to 33 ft for winter. The spot to know is Deep basin, a deep basin in about 33 ft of water that rates prime for walleye in winter. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | dusk & dawn | Break off the point (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Été | 10 to 33 ft | dusk & dawn | Deep basin (33 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 10 to 33 ft | dusk & night | Deep basin (33 ft) | Jigging rap, Jig + big minnow |
| Hiver | 10 to 33 ft | dusk & dawn | Deep basin (33 ft) | Jigging spoon + minnow head, Rattle bait |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 10 to 33 ft for winter. Fall yellow perch concentrate at Deep basin, a prime-rated deep basin around 33 ft. Fish it in early morning and you'll meet the bite. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Été | 10 to 30 ft | dawn | Deep basin (33 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 10 to 33 ft | midday | Deep basin (33 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 10 to 33 ft | midday & dawn | Deep basin (33 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Early season northern pike use the shallows, holding in 2 to 8 ft. Summer is an 8 to 20 ft game here, winter a 5 to 15 ft one. The chart's best answer is Shallow bay flat — weed flat, 1 ft, prime for spring. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Été | 8 to 20 ft | dawn & dusk | Break off the point (4 ft) | Bucktail, Weedless spoon over cabbage |
| Automne | 6 to 18 ft | midday & dawn | Break off the point (4 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Hiver | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 33 ft.
Season dates, license requirements, and size and bag limits for Québec waters are set by the Québec sport fishing rules (MELCCFP) — and special regulations can apply to Lac la Blanche specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac la Blanche is about 33 ft (10 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac la Blanche atteint environ 10 m (33 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, walleye, yellow perch, northern pike on Lac la Blanche. This species list is an informed estimate from Québec's provincial fish-range maps (bounded by each lake's depth and habitat), not a per-lake fish survey — Québec doesn't publish per-lake species records.
Deep basin is the top-rated area: a deep basin in about 33 ft of water that rates prime for walleye in winter. Every other rated spot, per species and season, is on the map above.
For brook trout, 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.
Fishing on Lac la Blanche is regulated by the Québec sport fishing rules (MELCCFP). Check the official Québec regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lac Liasse 3 mi · Lac de l'Île Ronde 8 mi · Lac Nicabau 9 mi · Lac du Bonhomme 9 mi · Lac Castonguay 14 mi · Lac des Sagittaires 15 mi · Lac Mignault 18 mi · Lac des Cantons 21 mi · Lac Aigremont 21 mi · Lac Ashuapmushuan 31 mi · Lac Desgly 34 mi · Lac du Grand Duc 34 mi
See how Lac la Blanche stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec · best brook trout lakes in Québec
More water nearby: Le Domaine-du-Roy MRC fishing maps (42 charts). Browse all Québec fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.