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15-acre lake near Québec. The lake tops out around 18 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.
Lac Gillis maps at 15 acres behind 0.6 miles of shoreline — one island included. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. 97% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 0.3 mi of water from one end to the other. Le Rocher-Percé MRC claims this one. Its nearest charted neighbour, Lac de l'Île, is 0 mi to the north.
Carte de pêche interactive gratuite — Lac Gillis, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 5 m (18 pi), et les meilleurs sites pour omble de fontaine, truite brune, ouananiche et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Spring brook trout on Lac Gillis hold shallow, usually 2 to 15 ft. They move out to 5 to 18 ft in summer and finish the year down in 3 to 18 ft. Put Deep basin first on the milk run — a deep basin near 18 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 | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 5 to 18 ft | dawn & dusk | Deep basin (18 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Hiver | 3 to 18 ft | dawn | Deep basin (18 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring puts brown trout in skinny water — 2 to 18 ft is the zone. Summer fish stay in 5 to 18 ft, and winter fish hold in 3 to 18 ft. Summer brown trout concentrate at Deep basin, a prime-rated deep basin around 18 ft. Warm-month bites cluster around after dark and early morning. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 18 ft | dawn & dusk | Main-lake point (1 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Été | 5 to 18 ft | night & dawn | Deep basin (18 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Automne | 3 to 18 ft | dusk & dawn | Main-lake point (1 ft) | Jerkbait over gravel, Casting spoon |
| Hiver | 3 to 18 ft | dawn | Deep basin (18 ft) | Jigging spoon, Small stickbait (slow) |
Early season landlocked salmon use the shallows, holding in 1 to 15 ft. Summer is a 5 to 18 ft game here, winter a 5 to 18 ft one. The chart's best answer is Deep basin — deep basin, 18 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 | Main-lake point (1 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Été | 5 to 18 ft | dawn & dusk | Deep basin (18 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Automne | 3 to 18 ft | dawn & dusk | Main-lake point (1 ft) | Casting spoon at the mouths, Streamers |
| Hiver | 5 to 18 ft | dawn | Deep basin (18 ft) | Small jigging spoon, Swedish pimple + smelt |
Start shallow in spring: striped bass sit in 5 to 18 ft that time of year. They don't go far with the seasons — 5 to 18 ft covers summer, 5 to 18 ft covers winter. The spot to know is Deep basin, a deep basin in about 18 ft of water that rates prime for striped bass in summer. Warm-month bites cluster around early morning and the evening. Throw a flutter spoon (deep) or an umbrella rig (trolled) until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 5 to 18 ft | dawn & dusk | Main-lake point (1 ft) | Bucktail jig + trailer, Walking topwater (dawn) |
| Été | 5 to 18 ft | dawn & dusk | Deep basin (18 ft) | Flutter spoon (deep), Umbrella rig (trolled) |
| Automne | 5 to 18 ft | dawn & dusk | Deep basin (18 ft) | Topwater walker, Jerkbait |
| Hiver | 5 to 18 ft | midday | Deep basin (18 ft) | Alabama rig (slow), Flutter spoon |
Lac Gillis carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 18 ft down.
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 Gillis specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Gillis is about 18 ft (5 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Gillis atteint environ 5 m (18 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, brown trout, landlocked salmon, striped bass on Lac Gillis. 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 18 ft of water that rates prime for landlocked salmon in summer. Open the map above to see every rated 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 Gillis 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 de l'Île 0 mi · Lac Mécampec 1 mi · Lac Bisson 2 mi · Lac Lamb 2 mi · Lac Pabos 3 mi · Lac Brûlé 4 mi · Lac Laroche 5 mi · Goose Lake 41 mi, NB · Teagues Lake 49 mi, NB · Belledune Lake 52 mi, NB · Antinouri Lake 57 mi, NB · Lac Adam 57 mi
See how Lac Gillis stacks up: best striped bass lakes in Québec · best brown trout lakes in Québec · best brook trout lakes in Québec · best landlocked salmon lakes in Québec
More water nearby: Le Rocher-Percé MRC fishing maps (8 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.