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215-acre lake in Algoma District, Ontario. The lake tops out around 90 ft. The depth data here comes from the Ontario MNRF survey of 1972, a decades-old survey (a transect sounding survey). Species by species, here's what the data says the year looks like.
The drawn water covers 216 acres wrapped in 3.9 miles of bank. A middling shoreline index (1.9) gives it some bays to work without being a maze. Littoral water — the productive band under ~15 ft — makes up 34% of this chart. Tip to tip the water measures near 0.9 mi with a 0.7-mi widest point. It sits in Algoma District. If the bite dies, Skookum Lake is 3 mi to the east.
When the water first warms, brook trout slide up into 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. If you only fish one area, make it Main-lake point: a point around 13 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (13 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (38 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (13 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (4 ft) | Small jigging spoon, Tungsten jig + plastic |
Early season lake trout use the shallows, holding in 10 to 40 ft. Expect a summer slide to 27 to 90 ft, then a winter hold in 20 to 80 ft. Put Deep basin first on the milk run — a deep basin near 90 ft that grades prime for summer. In summer the feeding windows fall in early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (13 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 27 to 90 ft | dawn | Deep basin (90 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (13 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (38 ft) | White tube jig, Airplane jig |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 10 to 30 ft; cold water stacks them in 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring yellow perch. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Shallow bay flat (4 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (38 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (90 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Early season burbot use the shallows, holding in 25 to 70 ft. Expect a summer slide to 27 to 90 ft, then a winter hold in 15 to 60 ft. Put Deep basin first on the milk run — a deep basin near 90 ft that grades prime for summer. In summer the feeding windows fall in after dark and midday. Tie on a heavy jig + cut bait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (38 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 27 to 90 ft | night & midday | Deep basin (90 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Break off the point (38 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Break off the point (38 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
The chart marks 6 structure features on Petauguin Lake; the deepest is Deep basin at about 90 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Petauguin Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Petauguin Lake is about 90 ft (27 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1972, a decades-old survey (a transect sounding survey).
Anglers target brook trout, lake trout, yellow perch, burbot on Petauguin Lake.
Deep basin is the top-rated area: a deep basin in about 90 ft of water that rates prime for lake trout in summer. The map above holds the full rated-spot list for every 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 Petauguin Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Skookum Lake 3 mi · Thorp Lake 3 mi · Havilah Lake 3 mi · Rheaume Lake 3 mi · Hoath Lake 4 mi · Grant Lake 4 mi · Daisy Mae Lake 4 mi · Snare Lake 4 mi · Cooper Lake 4 mi · Tarpaper Lake 5 mi · Desayeux Lake 5 mi · Patten Lake 5 mi
See how Petauguin Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best brook trout lakes in Ontario · best burbot lakes in Ontario
More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario 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.