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43-acre lake near Québec. The lake tops out around 80 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's the year, species by species, as the scoring engine sees it.
Drawn out, this is 43 acres of water rimmed by 1 miles of bank. Nearly circular (index 1.1), so the story is the bottom, not the bank. The shallow band under 15 ft claims about 4% of the surface — that's where the groceries are. Figure 0.3 mi of water from one end to the other, 0.3 mi at the beam. You'll find it in Les Laurentides MRC. The nearest mapped water is Lac Escalier, 2 mi to the north.
Carte de pêche interactive gratuite — Lac Ernie, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 24 m (80 pi), et les meilleurs sites pour omble de fontaine, touladi, omble chevalier et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. The spot to know is Shallow bay flat, a feeding flat in about 12 ft of water that rates good for brook trout in spring. Warm-month bites cluster around early morning and the evening. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| 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 |
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Warm water sends them out to 24 to 80 ft; cold water stacks them in 20 to 80 ft. Top water on the chart: Deep basin, a deep basin in the 79 ft range, prime in summer. Fish it in early morning and you'll meet the bite. Throw a white tube jig (deep) or a magnum spoon on downrigger until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 10 to 40 ft | dawn & dusk | Main-lake point (20 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Été | 24 to 80 ft | dawn | Deep basin (79 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Automne | 10 to 50 ft | dusk & dawn | Main-lake point (20 ft) | Heavy casting spoon, Jigging rap over reefs |
| Hiver | 20 to 80 ft | dawn | Deep basin (79 ft) | White tube jig, Airplane jig |
When the water first warms, arctic char slide up into 4 to 15 ft. Summer is a 20 to 60 ft game here, winter a 10 to 40 ft one. Start at Break off the point. It's a drop-off holding about 61 ft of water and rates prime come summer. The feeding windows run early morning. Keep a jigging spoon vertical or a tube jig (smelt) rigged through the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | midday & dawn | Shallow bay flat (12 ft) | Small casting spoon (silver/orange), Jerkbait (small) |
| Été | 20 to 60 ft | dawn | Break off the point (61 ft) | Jigging spoon vertical, Tube jig (smelt) |
| Automne | 8 to 30 ft | midday & dusk | open water | Casting spoon (orange/gold), Beadhead streamer |
| Hiver | 10 to 40 ft | midday & dawn | Deep basin (79 ft) | Jigging spoon (glow/silver), Tungsten jig + plastic |
When the water first warms, lake whitefish slide up into 15 to 45 ft. Summer is a 24 to 80 ft game here, winter a 25 to 70 ft one. Start at Deep basin. It's a deep basin holding about 79 ft of water and rates prime come summer. The feeding windows run early morning. Keep a blade bait vertical or a small jigging spoon rigged through the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 15 to 45 ft | midday & dawn | Back-bay flat (15 ft) | Small jig + waxworm, Blade bait (small) |
| Été | 24 to 80 ft | dawn | Deep basin (79 ft) | Blade bait vertical, Small jigging spoon |
| Automne | 8 to 30 ft | dusk | Main-lake point (20 ft) | Small spoon (gold), Jig + plastic larva |
| Hiver | 25 to 70 ft | midday & dawn | Break off the point (61 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Early season walleye use the shallows, holding in 4 to 15 ft. Expect a summer slide to 15 to 35 ft, then a winter hold in 20 to 40 ft. Put Main-lake point first on the milk run — a point near 20 ft that grades prime for fall. In summer the feeding windows fall in the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | dusk & dawn | open water | 1/8 oz jig + minnow, Hair jig |
| Été | 15 to 35 ft | dusk & dawn | Main-lake point (20 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 12 to 40 ft | dusk & night | Main-lake point (20 ft) | Jigging rap, Jig + big minnow |
| Hiver | 20 to 40 ft | dusk & dawn | Main-lake point (20 ft) | Jigging spoon + minnow head, Rattle bait |
Spring yellow perch on Lac Ernie hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 15 to 35 ft. Put Shallow bay flat first on the milk run — a feeding flat near 12 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 3 to 12 ft | midday & dawn | Shallow bay flat (12 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Été | 10 to 30 ft | dawn | Shallow bay flat (12 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 12 to 35 ft | midday | Deep basin (79 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 15 to 35 ft | midday & dawn | Back-bay flat (15 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Lac Ernie also holds northern pike (8 to 20 ft in summer), smallmouth bass (10 to 30 ft in summer), rock bass (5 to 20 ft in summer), pumpkinseed (2 to 10 ft in summer), brown bullhead (3 to 12 ft in summer), burbot (24 to 80 ft in summer). Pick any of them on the map above for rated spots and bait picks.
The chart marks 5 structure features on Lac Ernie; the deepest is Deep basin at about 79 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 Ernie specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Ernie is about 80 ft (24 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Ernie atteint environ 24 m (80 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, lake trout, arctic char, lake whitefish, walleye, yellow perch, northern pike, smallmouth bass, rock bass, pumpkinseed, brown bullhead, burbot on Lac Ernie. 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 79 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 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 Ernie 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 Escalier 2 mi · Lac aux Beans 3 mi · Lac Camille 3 mi · Lac Lauzon 3 mi · Lac Saint-Louis 3 mi · Lac Grenoux 3 mi · Lac Monroe 4 mi · Lac des Sables 4 mi · Lac Croche 4 mi · Lac Tador 4 mi · Petit lac Monroe 4 mi · Lac French 5 mi
See how Lac Ernie stacks up: best smallmouth bass lakes in Québec · best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec
More water nearby: Les Laurentides MRC fishing maps (134 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.