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35-acre lake near Québec. The lake tops out around 26 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.
The outline encloses 35 acres, worked by 1.1 miles of shoreline. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. The shallow band under 15 ft claims about 79% of the surface — that's where the groceries are. Tip to tip the water measures near 0.5 mi with a 0.2-mi widest point. Maskinongé MRC claims this one. If the bite dies, Lac de la Ferme is 1 mi to the south.
Carte de pêche interactive gratuite — Lac des Joncs, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 8 m (26 pi), et les meilleurs sites pour omble de fontaine, ouananiche, doré jaune et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. They move out to 8 to 26 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 25 ft that scores prime in summer. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 8 to 26 ft | dawn & dusk | Deep basin (25 ft) | 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 | Shoreline break (4 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, landlocked salmon slide up into 1 to 15 ft. Summer is an 8 to 26 ft game here, winter a 7 to 26 ft one. Start at Deep basin. It's a deep basin holding about 25 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a dodger + streamer down deep or a thin spoon on lead core rigged through the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 1 to 15 ft | dawn & dusk | Shoreline break (4 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Été | 8 to 26 ft | dawn & dusk | Deep basin (25 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Automne | 4 to 26 ft | dawn & dusk | Shoreline break (4 ft) | Casting spoon at the mouths, Streamers |
| Hiver | 7 to 26 ft | dawn | Deep basin (25 ft) | Small jigging spoon, Swedish pimple + smelt |
The spring pattern is a shallow one: walleye in 4 to 15 ft. As the season builds they drop to 8 to 26 ft, wintering in 8 to 26 ft. Top water on the chart: Deep basin, a deep basin in the 25 ft range, prime in winter. Time it for the evening and early morning. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 4 to 15 ft | dusk & dawn | Shoreline break (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Été | 8 to 26 ft | dusk & dawn | Deep basin (25 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 8 to 26 ft | dusk & night | Deep basin (25 ft) | Jigging rap, Jig + big minnow |
| Hiver | 8 to 26 ft | dusk & dawn | Deep basin (25 ft) | Jigging spoon + minnow head, Rattle bait |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 26 ft, and winter fish settle into 8 to 26 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring yellow perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Été | 8 to 26 ft | dawn | Deep basin (25 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 8 to 26 ft | midday | Deep basin (25 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 8 to 26 ft | midday & dawn | Deep basin (25 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Early season northern pike use the shallows, holding in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Été | 8 to 20 ft | dawn & dusk | Back-bay flat (5 ft) | Bucktail, Weedless spoon over cabbage |
| Automne | 6 to 18 ft | midday & dawn | Back-bay flat (5 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Hiver | 5 to 15 ft | midday | Back-bay flat (5 ft) | Tip-ups, Large jigging spoon |
In spring, rock bass run shallow here, mostly 2 to 10 ft. Midsummer fish sit out in 5 to 20 ft before dropping to 8 to 26 ft for winter. Winter rock bass concentrate at Deep basin, a prime-rated deep basin around 25 ft. Fish it in the evening and you'll meet the bite. You won't need more than a ned rig (small) or a marabou jig most summer days.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 10 ft | midday & dawn | open water | 1/16 oz jig + grub, Small inline spinner |
| Été | 5 to 20 ft | dusk | Shoreline break (4 ft) | Ned rig (small), Marabou jig |
| Automne | 8 to 22 ft | midday | Shoreline break (4 ft) | Small tube jig, Inline spinner |
| Hiver | 8 to 26 ft | midday | Deep basin (25 ft) | Tungsten jig + plastic, Small spoon + spike |
The chart marks 4 structure features on Lac des Joncs; the deepest is Deep basin at about 25 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 des Joncs specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac des Joncs is about 26 ft (8 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac des Joncs atteint environ 8 m (26 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, landlocked salmon, walleye, yellow perch, northern pike, rock bass on Lac des Joncs. 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 25 ft of water that rates prime for landlocked salmon in summer. Scroll up to the map for the complete spot list by 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 des Joncs 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 la Ferme 1 mi · Lac au Sable 2 mi · Lac du Soufflet 2 mi · Lac de la Chute Noire 2 mi · Lac aux Chicots 2 mi · Lac Coleman 2 mi · Lac l'Orignal 2 mi · Lac Verdun 2 mi · Lac des Saules 3 mi · Lac Lafond 3 mi · Lac Osborn 3 mi · Lac Log 3 mi
See how Lac des Joncs stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec · best brook trout lakes in Québec
More water nearby: Maskinongé MRC fishing maps (103 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.