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22-acre lake near Québec. The lake tops out around 32 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. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 22 acres, worked by 0.8 miles of shoreline. At index 1.2 the outline is almost a bowl — read the depth changes, not the shoreline. 32% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 0.3 mi end to end. Rimouski-Neigette MRC claims this one. Lac du Canard sits 1 mi south — the closest neighbouring chart.
Carte de pêche interactive gratuite — Lac Saint-Jean, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 10 m (32 pi), et les meilleurs sites pour omble de fontaine, ouananiche, perchaude et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Spring brook trout on Lac Saint-Jean hold shallow, usually 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. Put Deep basin first on the milk run — a deep basin near 32 ft that grades prime for summer. The feeding windows run early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 10 to 30 ft | dawn & dusk | Deep basin (32 ft) | 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 (6 ft) | Small jigging spoon, Tungsten jig + plastic |
Early season landlocked salmon use the shallows, holding in 1 to 15 ft. Summer is a 10 to 32 ft game here, winter an 8 to 32 ft one. The chart's best answer is Deep basin — deep basin, 32 ft, prime for summer. Best bite is early morning and the evening. Tie on a dodger + streamer down deep or a thin spoon on lead core and you're in the game.
| 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 | 10 to 32 ft | dawn & dusk | Deep basin (32 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 | 8 to 32 ft | dawn | Deep basin (32 ft) | Small jigging spoon, Swedish pimple + smelt |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 10 to 32 ft. The spot to know is Shallow bay flat, a weed flat in about 6 ft of water that rates prime for yellow perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small spoon tipped with worm until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Été | 10 to 30 ft | dawn | Deep basin (32 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 10 to 32 ft | midday | Deep basin (32 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 10 to 32 ft | midday & dawn | Deep basin (32 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Come spring, look for northern pike tight to the bank in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Start at Shallow bay flat. It's a weed flat holding about 6 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Été | 8 to 20 ft | dawn & dusk | Back-bay flat (8 ft) | Bucktail, Weedless spoon over cabbage |
| Automne | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Hiver | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
When the water first warms, brown bullhead slide up into 2 to 8 ft. Summer is a 3 to 12 ft game here, winter a 10 to 25 ft one. Start at Shallow bay flat. It's a weed flat holding about 6 ft of water and rates prime come spring. The feeding windows run after dark and the evening.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | dusk & night | Shallow bay flat (6 ft) | |
| Été | 3 to 12 ft | night & dusk | Shallow bay flat (6 ft) | |
| Automne | 5 to 15 ft | dusk | Shallow bay flat (6 ft) | |
| Hiver | 10 to 25 ft | midday | Deep basin (32 ft) |
Count 3 structure marks on this chart. The deepest, Deep basin, sits near 32 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 Saint-Jean specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Saint-Jean is about 32 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 Saint-Jean atteint environ 10 m (32 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, landlocked salmon, yellow perch, northern pike, brown bullhead on Lac Saint-Jean. 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 32 ft of water that rates prime for landlocked salmon in summer. The interactive chart above rates every spot for each species and season.
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 Saint-Jean 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 du Canard 1 mi · Lac du Serpent 2 mi · Lac du Castor 2 mi · Lac de l'Épinette Noire 4 mi · Lac des Échos 4 mi · Lac Blanc 4 mi · Lac Huguette 5 mi · Lac Rimouski 6 mi · Lac de la Perdrix 8 mi · Lac Daniel 8 mi · Lac Côté 9 mi · Lac à John 9 mi
See how Lac Saint-Jean stacks up: best northern pike lakes in Québec · best yellow perch lakes in Québec · best brook trout lakes in Québec · best landlocked salmon lakes in Québec
More water nearby: Rimouski-Neigette MRC fishing maps (26 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.