Sign inSign up free Sign inSign up free Sign inSign up freeShared by DepthScout anglers. Exact spots stay private, always.
20-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. Below is the species-by-species picture, pulled from the same data the map uses.
Lac Ahern maps at 20 acres behind 1.2 miles of shoreline. A middling shoreline index (1.8) gives it some bays to work without being a maze. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Call it 0.6 mi long. Antoine-Labelle MRC claims this one. Its nearest charted neighbour, Lac Langevin, is 1 mi to the southeast.
Carte de pêche interactive gratuite — Lac Ahern, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 2 m (8 pi), et les meilleurs sites pour omble de fontaine, truite arc-en-ciel, doré jaune et plus. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
When the water first warms, brook trout slide up into 1 to 8 ft. There's no big seasonal slide here — summer means 2 to 8 ft, winter 1 to 8 ft. Start at Deep basin. It's a deep basin holding about 8 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 1 to 8 ft | dawn & dusk | Main-lake point (3 ft) | Small inline spinner (gold), Tiny spoon |
| Été | 2 to 8 ft | dawn & dusk | Deep basin (8 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Automne | 1 to 8 ft | midday & dawn | Main-lake point (3 ft) | Small spoon (orange), Spinner |
| Hiver | 1 to 8 ft | dawn | Deep basin (8 ft) | Small jigging spoon, Tungsten jig + plastic |
Come spring, look for rainbow trout tight to the bank in 2 to 8 ft. Through summer count on 2 to 8 ft; the winter hold is 2 to 8 ft. If you only fish one area, make it Break off the point: a drop-off around 2 ft that scores prime in winter. Best bite is early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | dawn & dusk | Main-lake point (3 ft) | Inline spinner (silver), Small spoon |
| Été | 2 to 8 ft | dawn & dusk | Break off the point (2 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Automne | 2 to 8 ft | dawn & dusk | Main-lake point (3 ft) | Casting spoon, Jerkbait over shoals |
| Hiver | 2 to 8 ft | dawn | Break off the point (2 ft) | Jigging spoon, Tube jig (white) |
Start shallow in spring: walleye sit in 2 to 8 ft that time of year. They don't go far with the seasons — 2 to 8 ft covers summer, 2 to 8 ft covers winter. The spot to know is Break off the point, a drop-off in about 2 ft of water that rates prime for walleye in fall. Warm-month bites cluster around the evening and early morning. Throw a crawler harness on bottom bouncer or a deep crankbait (trolled) until the fish tell you otherwise.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | dusk & dawn | Main-lake point (3 ft) | 1/8 oz jig + minnow, Hair jig |
| Été | 2 to 8 ft | dusk & dawn | Break off the point (2 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Automne | 2 to 8 ft | dusk & night | Break off the point (2 ft) | Jigging rap, Jig + big minnow |
| Hiver | 2 to 8 ft | dusk & dawn | Deep basin (8 ft) | Jigging spoon + minnow head, Rattle bait |
Spring puts yellow perch in skinny water — 2 to 8 ft is the zone. Summer fish stay in 2 to 8 ft, and winter fish hold in 2 to 8 ft. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 2 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| 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 (8 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Automne | 2 to 8 ft | midday | Deep basin (8 ft) | Jigging spoon (small), Perch rig / spreader |
| Hiver | 2 to 8 ft | midday & dawn | Deep basin (8 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on Lac Ahern 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. The chart's best answer is Shallow bay flat — weed flat, 2 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Été | 2 to 8 ft | dawn & dusk | Shallow bay flat (2 ft) | Bucktail, Weedless spoon over cabbage |
| Automne | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Hiver | 2 to 8 ft | midday | Shallow bay flat (2 ft) | Tip-ups, Large jigging spoon |
Spring smallmouth bass on Lac Ahern 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. The chart's best answer is Main-lake point — point, 3 ft, prime for fall. Prime time lands in early morning and the evening. The summer box starts with a drop shot (goby/minnow) or a ned rig.
| Saison | Profondeur | Meilleure fenêtre | Commencer à | Leurres |
|---|---|---|---|---|
| Printemps | 2 to 8 ft | dawn & dusk | Main-lake point (3 ft) | Ned rig, Tube jig |
| Été | 2 to 8 ft | dawn & dusk | Break off the point (2 ft) | Drop shot (goby/minnow), Ned rig |
| Automne | 2 to 8 ft | midday & dawn | Main-lake point (3 ft) | Jerkbait, Blade bait |
| Hiver | 2 to 8 ft | midday | Break off the point (2 ft) | Blade bait, Hair jig |
Lac Ahern also holds rock bass (2 to 8 ft in summer), pumpkinseed (2 to 8 ft in summer), brown bullhead (2 to 8 ft in summer), channel catfish (2 to 8 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Lac Ahern carries 5 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 8 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 Ahern specifically, so confirm the current rules before you fish.
Check the official Québec fishing regulations →
Lac Ahern 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 Ahern atteint environ 2 m (8 pi) à son point le plus profond. Les profondeurs proviennent de relevés bathymétriques réels.
Anglers target brook trout, rainbow trout, walleye, yellow perch, northern pike, smallmouth bass, rock bass, pumpkinseed, brown bullhead, channel catfish on Lac Ahern. 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.
Break off the point is the top-rated area: a drop-off in about 2 ft of water that rates prime for walleye in fall. 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 Ahern 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 Langevin 1 mi · Lac Michaud 2 mi · Lac Beautour 2 mi · Lac Légende 2 mi · Lac Bing 2 mi · Lac Lamarre 3 mi · Lac Toncamp 3 mi · Lac Joinville 4 mi · Lac Kealy 4 mi · Lac Berthe 4 mi · Lac de l'Hydroplane 5 mi · Lac du Quai 5 mi
See how Lac Ahern stacks up: best smallmouth bass lakes in Québec · best walleye lakes in Québec · best northern pike lakes in Québec · best channel catfish lakes in Québec
More water nearby: Antoine-Labelle MRC fishing maps (249 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.