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427-acre lake near Québec. The lake tops out around 263 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. Every species below gets its seasonal read from the same numbers driving the chart.
Lac Langis maps at 427 acres behind 5.4 miles of shoreline. With a 1.9 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 2% of this chart. Call it 2.5 mi long by 0.5 mi wide at the broadest reach. Sept-Rivières--Caniapiscau claims this one. Its nearest charted neighbour, Lac Roy, is 2 mi to the southeast.
Carte de pêche interactive gratuite — Lac Langis, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 80 m (263 pi), et les meilleurs sites pour omble de fontaine, touladi, ouananiche et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Early season brook trout use the shallows, holding in 2 to 15 ft. Summer is a 10 to 30 ft game here, winter a 3 to 20 ft one. The chart's best answer is Shallow bay flat — feeding flat, 12 ft, good for spring. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 15 ft | dawn & dusk | Shallow bay flat (12 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 10 to 30 ft | dawn & dusk | open water | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Hiver | 3 to 20 ft | dawn | Shallow bay flat (12 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, lake trout slide up into 10 to 40 ft. Summer is a 50 to 120 ft game here, winter a 20 to 80 ft one. Start at Secondary point. It's a point holding about 55 ft of water and rates prime come fall. The feeding windows run early morning. Keep a white tube jig (deep) or a magnum spoon on downrigger rigged through the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 10 to 40 ft | dawn & dusk | Main-lake point (69 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Été | 50 to 120 ft | dawn | Deep basin (262 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Automne | 10 to 50 ft | dusk & dawn | Secondary point (55 ft) | Heavy casting spoon, Jigging rap over reefs |
| Hiver | 20 to 80 ft | dawn | Deep basin (262 ft) | White tube jig, Airplane jig |
Spring landlocked salmon on Lac Langis hold shallow, usually 1 to 15 ft. They move out to 25 to 60 ft in summer and finish the year down in 10 to 40 ft. Put Secondary point first on the milk run — a point near 55 ft that grades good for summer. The feeding windows run early morning and the evening. The summer box starts with a dodger + streamer down deep or a thin spoon on lead core.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 1 to 15 ft | dawn & dusk | open water | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Été | 25 to 60 ft | dawn & dusk | Secondary point (55 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Automne | 5 to 30 ft | dawn & dusk | open water | Casting spoon at the mouths, Streamers |
| Hiver | 10 to 40 ft | dawn | Deep basin (262 ft) | Small jigging spoon, Swedish pimple + smelt |
Start shallow in spring: lake whitefish sit in 15 to 45 ft that time of year. Warm water sends them out to 40 to 90 ft; cold water stacks them in 25 to 70 ft. Top water on the chart: Back-bay flat, a feeding flat in the 25 ft range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a blade bait vertical or a small jigging spoon until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 15 to 45 ft | midday & dawn | Back-bay flat (25 ft) | Small jig + waxworm, Blade bait (small) |
| Été | 40 to 90 ft | dawn | Shallow feeding flat (69 ft) | Blade bait vertical, Small jigging spoon |
| Automne | 8 to 30 ft | dusk | open water | Small spoon (gold), Jig + plastic larva |
| Hiver | 25 to 70 ft | midday & dawn | Back-bay flat (25 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Structure-wise the chart holds 7 features, led in depth by Deep basin at roughly 262 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 Langis specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Langis is about 263 ft (80 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Langis atteint environ 80 m (263 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, lake trout, landlocked salmon, lake whitefish on Lac Langis. 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.
Back-bay flat is the top-rated area: a feeding flat in about 25 ft of water that rates prime for lake whitefish in spring. 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 Langis 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 Roy 2 mi · Lac Édouard 5 mi · Petit lac Simard 8 mi · Lac Yam 8 mi · Lac Profond 9 mi · Lac Riverin 11 mi · Lac Simard 12 mi · Lac Quatre Lieues 12 mi · Lac Guillemette 13 mi · Lac Alain-Potvin 18 mi · Lac de la Coop 19 mi · Lac des Noyés 19 mi
See how Lac Langis stacks up: best lake trout lakes in Québec · best brook trout lakes in Québec · best landlocked salmon lakes in Québec · best lake whitefish lakes in Québec
More water nearby: Sept-Rivières--Caniapiscau fishing maps (27 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.