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Fishing Petit lac Saint-Mathieu: what the data says
213-acre lake near Québec. The lake tops out around 38 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. What follows comes from the same scoring engine that paints the spots above.
Carte de pêche interactive gratuite — Petit lac Saint-Mathieu, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 12 m (38 pi), les meilleurs sites pour doré jaune, grand brochet et perchaude, fenêtres d'activité saisonnières et choix d'appâts. Aucune inscription requise. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
Walleye fishing at Petit lac Saint-Mathieu
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. They move out to 15 to 35 ft in summer and finish the year down in 11 to 38 ft. The spot to know is Break off the point, a drop-off in about 30 ft of water that rates prime for walleye in fall. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 11 to 38 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 11 to 38 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Northern Pike fishing at Petit lac Saint-Mathieu
Spring northern pike on Petit lac Saint-Mathieu hold shallow, usually 2 to 8 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. The spot to know is Back-bay flat, a weed flat in about 5 ft of water that rates prime for northern pike in spring. Best bite is early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Yellow Perch fishing at Petit lac Saint-Mathieu
Spring yellow perch on Petit lac Saint-Mathieu hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 9 ft, rated prime for spring yellow perch. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Notable structure
- Deep basin: deep basin, around 37 ft
- Break off the point: drop-off, around 30 ft
- Main-lake point: point, around 10 ft
- Shallow bay flat: weed flat, around 9 ft
- Secondary point: point, around 6 ft
- Back-bay flat: weed flat, around 5 ft
Common questions
How deep is Petit lac Saint-Mathieu?
Petit lac Saint-Mathieu is about 38 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Petit lac Saint-Mathieu?
Anglers target walleye, northern pike, yellow perch on Petit lac Saint-Mathieu.
Where is the best fishing spot on Petit lac Saint-Mathieu?
Break off the point is the top-rated area: a drop-off in about 30 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Petit lac Saint-Mathieu?
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Lac Saint-Mathieu · Grand lac Touradi · Petit lac Touradi · Lac Saint-Hubert · Grand lac Touladi · Lac Saint-François
See how Petit lac Saint-Mathieu stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec
Browse all Québec fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.