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2,699-acre lake in Thunder Bay District, Ontario. The lake tops out around 32 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1972, a decades-old survey (an MNRF lake survey). Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 2,702 acres, worked by 20.3 miles of shoreline, broken up by 2 islands. With a shoreline index of 2.8, this water is all arms and coves — edge habitat well beyond its acreage. 90% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 5.5 mi with a 1.7-mi widest point. It sits in Thunder Bay District. Lever Lake sits 4 mi north — the closest neighbouring chart.
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Warm water sends them out to 10 to 32 ft; cold water stacks them in 10 to 32 ft. Top water on the chart: Deep basin, a deep basin in the 30 ft range, prime in winter. Fish it in the evening and early morning and you'll meet the bite. Throw a crawler harness on bottom bouncer or a deep crankbait (trolled) until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Break off the point (5 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 10 to 32 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Sharp break (8 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 10 to 32 ft chart-limited; documented 12 to 40 ft | dusk & night | Sharp break (8 ft) | Jigging rap, Jig + big minnow |
| Winter | 10 to 32 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (30 ft) | Jigging spoon + minnow head, Rattle bait |
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 10 to 32 ft. Weed flat is the standout, a weed flat at roughly 5 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Weed flat (5 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (30 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 10 to 32 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 10 to 32 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (30 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on Poshkokagan Lake hold shallow, usually 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. Put Weed flat first on the milk run — a weed flat near 5 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (5 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Sharp break (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Sharp break (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Weed flat (5 ft) | Tip-ups, Large jigging spoon |
Spring puts lake whitefish in skinny water — 10 to 32 ft is the zone. Summer fish stay in 10 to 32 ft, and winter fish hold in 10 to 32 ft. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 30 ft. Warm-month bites cluster around early morning. A blade bait vertical or a small jigging spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 32 ft chart-limited; documented 15 to 45 ft | midday & dawn | Shallow feeding flat (20 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 10 to 32 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Sharp break (8 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 10 to 32 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (30 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Count 9 structure marks on this chart. The deepest, Deep basin, sits near 30 ft.
Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.
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 Poshkokagan Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Poshkokagan Lake is about 32 ft (10 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1972, a decades-old survey (an MNRF lake survey).
Anglers target walleye, yellow perch, northern pike, lake whitefish on Poshkokagan Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for walleye in winter. The map above holds the full rated-spot list for every species and season.
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.
Fishing on Poshkokagan 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.
Lever Lake 4 mi · Wabikon Lake 6 mi · Handley Lake 8 mi · Whistle Lake 8 mi · Rinker Lake 8 mi · Gennis Lake 8 mi · Sauerbrei Lake 9 mi · Upper Wabikon Lake 9 mi · Jolly Lake 9 mi · Vandenbrooks Lake 11 mi · Rousseau Lake 11 mi · Legris Lake 12 mi
See how Poshkokagan Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best lake whitefish lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.