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37-acre lake near Québec. The lake tops out around 50 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.
On the chart, Lac Guyaumar draws 37 acres inside 1 miles of shoreline. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. Roughly 42% of the water is 15 ft or less, the band where the food chain lives. The basin spans about 0.4 mi end to end and 0.2 mi across at its widest. You'll find it in Portneuf MRC. Closest neighbour on DepthScout: Lac George, 1 mi northwest of here.
Carte de pêche interactive gratuite — Lac Guyaumar, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 15 m (50 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.
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. Spring brook trout concentrate at Shallow bay flat, a good-rated weed flat around 5 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 | Shallow bay flat (5 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 (5 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, lake trout run shallow here, mostly 10 to 40 ft. Midsummer fish sit out in 15 to 50 ft before dropping to 13 to 50 ft for winter. Summer lake trout concentrate at Deep basin, a prime-rated deep basin around 50 ft. Fish it in early morning and you'll meet the bite. You won't need more than a white tube jig (deep) or a magnum spoon on downrigger most summer days.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 10 to 40 ft | dawn & dusk | open water | Casting spoon over shoals, Jerkbait (shallow) |
| Été | 15 to 50 ft | dawn | Deep basin (50 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Automne | 10 to 50 ft | dusk & dawn | open water | Heavy casting spoon, Jigging rap over reefs |
| Hiver | 13 to 50 ft | dawn | Deep basin (50 ft) | White tube jig, Airplane jig |
Spring arctic char on Lac Guyaumar hold shallow, usually 4 to 15 ft. They move out to 15 to 50 ft in summer and finish the year down in 10 to 40 ft. Put Deep basin first on the milk run — a deep basin near 50 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a jigging spoon vertical or a tube jig (smelt).
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | midday & dawn | open water | Small casting spoon (silver/orange), Jerkbait (small) |
| Été | 15 to 50 ft | dawn | Deep basin (50 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 (50 ft) | Jigging spoon (glow/silver), Tungsten jig + plastic |
Spring lake whitefish on Lac Guyaumar hold shallow, usually 15 to 45 ft. They move out to 15 to 50 ft in summer and finish the year down in 15 to 50 ft. Put Deep basin first on the milk run — a deep basin near 50 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 15 to 45 ft | midday & dawn | open water | Small jig + waxworm, Blade bait (small) |
| Été | 15 to 50 ft | dawn | Deep basin (50 ft) | Blade bait vertical, Small jigging spoon |
| Automne | 8 to 30 ft | dusk | open water | Small spoon (gold), Jig + plastic larva |
| Hiver | 15 to 50 ft | midday & dawn | Deep basin (50 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring cisco (lake herring) on Lac Guyaumar hold shallow, usually 10 to 40 ft. They move out to 15 to 50 ft in summer and finish the year down in 15 to 50 ft. Put Deep basin first on the milk run — a deep basin near 50 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 10 to 40 ft | dawn & dusk | Deep basin (50 ft) | Small silver spoon, Tiny swim jig (white) |
| Été | 15 to 50 ft | dawn | Deep basin (50 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Automne | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Hiver | 15 to 50 ft | dawn | Deep basin (50 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
When the water first warms, walleye slide up into 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 20 to 40 ft. If you only fish one area, make it Deep basin: a deep basin around 50 ft that scores good in winter. In summer the feeding windows fall in the evening and early morning. Keep a crawler harness on bottom bouncer or a deep crankbait (trolled) rigged through the warm months.
| 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 | open water | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 12 to 40 ft | dusk & night | Deep basin (50 ft) | Jigging rap, Jig + big minnow |
| Hiver | 20 to 40 ft | dusk & dawn | Deep basin (50 ft) | Jigging spoon + minnow head, Rattle bait |
Lac Guyaumar also holds yellow perch (10 to 30 ft in summer), northern pike (8 to 20 ft in summer), burbot (15 to 50 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 3 structure marks on this chart. The deepest, Deep basin, sits near 50 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 Guyaumar specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Guyaumar is about 50 ft (15 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Guyaumar atteint environ 15 m (50 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, lake trout, arctic char, lake whitefish, cisco (lake herring), walleye, yellow perch, northern pike, burbot on Lac Guyaumar. 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 50 ft of water that rates prime for lake trout 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 Guyaumar 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 George 1 mi · Lac Vert 1 mi · Lac Long 1 mi · Lac Bouchard 2 mi · Lac Samson 2 mi · Lac Leroy 2 mi · Lac Lapeyrère 2 mi · Lac à l'Eau Claire 3 mi · Lac Trampe 3 mi · Lac Germain 3 mi · Lac Burroughs 3 mi · Lac Reguindeau 3 mi
See how Lac Guyaumar stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec · best lake trout lakes in Québec
More water nearby: Portneuf MRC fishing maps (95 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.