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86-acre lake near Québec. The lake tops out around 39 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. Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 86 acres of water rimmed by 1.9 miles of bank. 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 47% of the surface — that's where the groceries are. Call it 0.9 mi long by 0.2 mi wide at the broadest reach. You'll find it in Le Saguenay-et-son-Fjord. The nearest mapped water is Lac Saint-Pierre, 1 mi to the southeast.
Carte de pêche interactive gratuite — Lac Cyriac, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 12 m (39 pi), et les meilleurs sites pour omble de fontaine, ouananiche et perchaude. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Spring puts brook trout in skinny water — 2 to 15 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 3 to 20 ft. Summer brook trout concentrate at Break off the point, a prime-rated drop-off around 14 ft. Warm-month bites cluster around early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 15 ft | dawn & dusk | Main-lake point (13 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 10 to 30 ft | dawn & dusk | Break off the point (14 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 2 to 15 ft | midday & dawn | Main-lake point (13 ft) | Small spoon (orange), Spinner |
| Hiver | 3 to 20 ft | dawn | Break off the point (14 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, landlocked salmon run shallow here, mostly 1 to 15 ft. Summer pushes them deeper, 12 to 39 ft, and winter fish settle into 10 to 39 ft. Deep basin is the standout, a deep basin at roughly 39 ft, rated prime for summer landlocked salmon. Time it for early morning and the evening. You won't need more than a dodger + streamer down deep or a thin spoon on lead core most summer days.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 1 to 15 ft | dawn & dusk | Main-lake point (13 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Été | 12 to 39 ft | dawn & dusk | Deep basin (39 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Automne | 5 to 30 ft | dawn & dusk | Main-lake point (13 ft) | Casting spoon at the mouths, Streamers |
| Hiver | 10 to 39 ft | dawn | Deep basin (39 ft) | Small jigging spoon, Swedish pimple + smelt |
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 15 to 35 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 early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| 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 | Break off the point (14 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 12 to 35 ft | midday | Break off the point (14 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 15 to 35 ft | midday & dawn | Deep basin (39 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 39 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 Cyriac specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Cyriac is about 39 ft (12 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Cyriac atteint environ 12 m (39 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, landlocked salmon, yellow perch on Lac Cyriac. 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 39 ft of water that rates prime for landlocked salmon in summer. The map above holds the full rated-spot list for every 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 Cyriac 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 Saint-Pierre 1 mi · Lac Laurier 1 mi · Lac Nixon 1 mi · Lac du Quai 2 mi · Lac Ministuk 2 mi · Lac Chavary 2 mi · Lac Normand 2 mi · Lac Paul 2 mi · Lac Ayette 4 mi · Lac Richelieu 4 mi · Lac Lévesque 6 mi · Lac des Îlets 6 mi
See how Lac Cyriac stacks up: best yellow perch lakes in Québec · best brook trout lakes in Québec · best landlocked salmon lakes in Québec
More water nearby: Le Saguenay-et-son-Fjord fishing maps (21 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.