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83-acre lake near Québec. The lake tops out around 8 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.
On the chart, Lac Isidore draws 83 acres inside 1.5 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. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout. The basin spans about 0.6 mi end to end and 0.3 mi across at its widest. You'll find it in L'Islet MRC. Closest neighbour on DepthScout: Lac d'Apic, 7 mi southeast of here.
Carte de pêche interactive gratuite — Lac Isidore, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 2 m (8 pi), et les meilleurs sites pour omble de fontaine, perchaude et barbotte brune. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Start shallow in spring: brook trout sit in 1 to 8 ft that time of year. They don't go far with the seasons — 2 to 8 ft covers summer, 1 to 8 ft covers winter. The spot to know is Deep basin, a deep basin in about 7 ft of water that rates prime for brook trout in summer. 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 | 1 to 8 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 2 to 8 ft | dawn & dusk | Deep basin (7 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 1 to 8 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Hiver | 1 to 8 ft | dawn | Deep basin (7 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring yellow perch on Lac Isidore hold shallow, usually 2 to 8 ft. Depth-wise the year is flat: 2 to 8 ft in summer, 2 to 8 ft once it turns cold. Put Shallow bay flat first on the milk run — a weed flat near 2 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 | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Été | 2 to 8 ft | dawn | Deep basin (7 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 2 to 8 ft | midday | Deep basin (7 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 2 to 8 ft | midday & dawn | Deep basin (7 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. The depth story barely changes: 2 to 8 ft through summer, 2 to 8 ft in winter. The spot to know is Deep basin, a deep basin in about 7 ft of water that rates prime for brown bullhead in winter. Plan around after dark and the evening in the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | dusk & night | Shallow bay flat (2 ft) | |
| Été | 2 to 8 ft | night & dusk | Shallow bay flat (2 ft) | |
| Automne | 2 to 8 ft | dusk | Deep basin (7 ft) | |
| Hiver | 2 to 8 ft | midday | Deep basin (7 ft) |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 7 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 Isidore specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Isidore is about 8 ft (2 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Lac Isidore atteint environ 2 m (8 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, yellow perch, brown bullhead on Lac Isidore. 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.
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for yellow perch in spring. 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 Isidore 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 d'Apic 7 mi · Lac Fontaine Claire 8 mi · Lac des Plaines 10 mi · Lac Bringé 11 mi · Lac Trois Saumons 12 mi · Lac Jally 14 mi · Lac Chartier 15 mi · Lac Frontière 22 mi · Presley Lake 23 mi, ME · Lac Crève-Faim 26 mi · Lac Dion 29 mi · Lac Vert 29 mi
See how Lac Isidore stacks up: best yellow perch lakes in Québec · best brook trout lakes in Québec · best brown bullhead lakes in Québec
More water nearby: L'Islet MRC fishing maps (6 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.