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630-acre lake near Québec. The lake tops out around 125 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.
Traced from the shoreline, Lac Sinclair runs 630 acres with 5 miles of edge. At index 1.4 the outline is almost a bowl — read the depth changes, not the shoreline. Littoral water — the productive band under ~15 ft — makes up 35% of this chart. Tip to tip the water measures near 1.7 mi with a 1-mi widest point. The water lies in Les Collines-de-l'Outaouais MRC. For a second option, Lac des Loups lies 8 mi south.
Carte de pêche interactive gratuite — Lac Sinclair, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 38 m (125 pi), et les meilleurs sites pour touladi, truite arc-en-ciel, truite brune et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
The spring pattern is a shallow one: lake trout in 10 to 40 ft. As the season builds they drop to 50 to 120 ft, wintering in 20 to 80 ft. Top water on the chart: Deep basin, a deep basin in the 125 ft range, prime in summer. Time it for early morning. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 10 to 40 ft | dawn & dusk | Secondary point (17 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Été | 50 to 120 ft | dawn | Deep basin (125 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Automne | 10 to 50 ft | dusk & dawn | Secondary point (17 ft) | Heavy casting spoon, Jigging rap over reefs |
| Hiver | 20 to 80 ft | dawn | Break off the point (10 ft) | White tube jig, Airplane jig |
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Break off the point, a drop-off in the 10 ft range, prime in winter. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 5 to 20 ft | dawn & dusk | Main-lake point (6 ft) | Inline spinner (silver), Small spoon |
| Été | 8 to 30 ft | dawn & dusk | Break off the point (10 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Automne | 10 to 35 ft | dawn & dusk | Secondary point (17 ft) | Casting spoon, Jerkbait over shoals |
| Hiver | 8 to 40 ft | dawn | Break off the point (10 ft) | Jigging spoon, Tube jig (white) |
Spring brown trout on Lac Sinclair hold shallow, usually 3 to 25 ft. They move out to 25 to 60 ft in summer and finish the year down in 5 to 35 ft. Put Break off the point first on the milk run — a drop-off near 10 ft that grades prime for winter. The feeding windows run after dark and early morning. The summer box starts with a spoon at the thermocline or a deep stickbait (night).
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 3 to 25 ft | dawn & dusk | Main-lake point (6 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Été | 25 to 60 ft | night & dawn | Break off the point (10 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Automne | 5 to 30 ft | dusk & dawn | Main-lake point (6 ft) | Jerkbait over gravel, Casting spoon |
| Hiver | 5 to 35 ft | dawn | Break off the point (10 ft) | Jigging spoon, Small stickbait (slow) |
Come spring, look for arctic char tight to the bank in 4 to 15 ft. Expect a summer slide to 20 to 60 ft, then a winter hold in 10 to 40 ft. Start at Break off the point. It's a drop-off holding about 10 ft of water and rates prime come spring. Prime time lands in early morning. A jigging spoon vertical or a tube jig (smelt) is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | midday & dawn | Break off the point (10 ft) | Small casting spoon (silver/orange), Jerkbait (small) |
| Été | 20 to 60 ft | dawn | Break off the point (10 ft) | Jigging spoon vertical, Tube jig (smelt) |
| Automne | 8 to 30 ft | midday & dusk | Break off the point (10 ft) | Casting spoon (orange/gold), Beadhead streamer |
| Hiver | 10 to 40 ft | midday & dawn | Break off the point (10 ft) | Jigging spoon (glow/silver), Tungsten jig + plastic |
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. Expect a summer slide to 40 to 90 ft, then a winter hold in 25 to 70 ft. Start at Shallow feeding flat. It's a feeding flat holding about 35 ft of water and rates prime come spring. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 15 to 45 ft | midday & dawn | Shallow feeding flat (35 ft) | Small jig + waxworm, Blade bait (small) |
| Été | 40 to 90 ft | dawn | Shallow feeding flat (35 ft) | Blade bait vertical, Small jigging spoon |
| Automne | 8 to 30 ft | dusk | Break off the point (10 ft) | Small spoon (gold), Jig + plastic larva |
| Hiver | 25 to 70 ft | midday & dawn | Shallow feeding flat (35 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring walleye on Lac Sinclair hold shallow, usually 4 to 15 ft. They move out to 15 to 35 ft in summer and finish the year down in 20 to 40 ft. Put Break off the point first on the milk run — a drop-off near 10 ft that grades prime for fall. The feeding windows run the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | dusk & dawn | Main-lake point (6 ft) | 1/8 oz jig + minnow, Hair jig |
| Été | 15 to 35 ft | dusk & dawn | Secondary point (17 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 12 to 40 ft | dusk & night | Break off the point (10 ft) | Jigging rap, Jig + big minnow |
| Hiver | 20 to 40 ft | dusk & dawn | Deep basin (125 ft) | Jigging spoon + minnow head, Rattle bait |
Lac Sinclair also holds yellow perch (10 to 30 ft in summer), northern pike (8 to 20 ft in summer), muskellunge (8 to 25 ft in summer), smallmouth bass (10 to 30 ft in summer), largemouth bass (8 to 20 ft in summer), rock bass (5 to 20 ft in summer), crappie (10 to 25 ft in summer), pumpkinseed (2 to 10 ft in summer), brown bullhead (3 to 12 ft in summer), channel catfish (8 to 25 ft in summer), burbot (50 to 120 ft in summer), longnose gar (1 to 12 ft in summer). Pick any of them on the map above for rated spots and bait picks.
8 pieces of structure are mapped here — Deep basin, around 125 ft, is the deepest of them.
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 Sinclair specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Sinclair is about 125 ft (38 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Sinclair atteint environ 38 m (125 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target lake trout, rainbow trout, brown trout, arctic char, lake whitefish, walleye, yellow perch, northern pike, muskellunge, smallmouth bass, largemouth bass, rock bass, crappie, pumpkinseed, brown bullhead, channel catfish, burbot, longnose gar on Lac Sinclair. 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 125 ft of water that rates prime for lake trout in summer. Every other rated spot, per species and season, is on the map above.
For lake trout, the summer bite is best in early morning. 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 Sinclair 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 des Loups 8 mi · Lac Bernard 8 mi · Lac à la Truite 10 mi · Lac Gauvreau 12 mi · Lac de la Ferme 13 mi · Lac McCuaig 15 mi · Lac Hughes 15 mi · Lac du Cardinal 18 mi · Lac Heney 21 mi · Lac Cayamant 23 mi · Lac Pemichangan 23 mi · Lac Perreault 25 mi
See how Lac Sinclair stacks up: best largemouth bass lakes in Québec · best smallmouth bass lakes in Québec · best walleye lakes in Québec · best northern pike lakes in Québec
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.