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65,969-acre lake in Kenora District, Ontario. The lake tops out around 80 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 1964, a decades-old survey (a transect sounding survey). The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 62,601 acres, worked by 574.1 miles of shoreline, with 336 islands in the mix. A development index of 16.4 means a maze of bays and points: far more casting targets than a round bowl of the same size. The shallow band under 15 ft claims about 57% of the surface — that's where the groceries are. End to end it runs roughly 24.4 mi, about 14.6 mi across. Kenora District claims this one. Hilyard Lake sits 15 mi west — the closest neighbouring chart.
The spring pattern is a shallow one: lake whitefish in 15 to 45 ft. Midsummer fish sit out in 24 to 80 ft before dropping to 25 to 70 ft for winter. The spot to know is Deep basin, a deep basin in about 79 ft of water that rates prime for lake whitefish in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
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 | 15 to 45 ft | midday & dawn | Shallow feeding flat (21 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 24 to 80 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (79 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (8 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Sharp break (52 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring puts walleye in skinny water — 4 to 15 ft is the zone. As the season builds they drop to 15 to 35 ft, wintering in 20 to 40 ft. Spring walleye concentrate at Rock reef, a prime-rated rock pile around 8 ft. Warm-month bites cluster around the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Rock reef (8 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Shallow feeding flat (21 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Secondary point (9 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | open water | Jigging spoon + minnow head, Rattle bait |
Come spring, look for northern pike tight to the bank in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Start at Shallow bay flat. It's a weed flat holding about 4 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (4 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow flat (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Back-bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Back-bay flat (6 ft) | Tip-ups, Large jigging spoon |
In spring, lake sturgeon run shallow here, mostly 3 to 15 ft. Summer pushes them deeper, 15 to 40 ft, and winter fish settle into 20 to 60 ft. Shallow feeding flat is the standout, a feeding flat at roughly 21 ft, rated prime for summer lake sturgeon. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dusk & night | Rock reef (8 ft) | |
| Summer | 15 to 40 ft | night & dusk | Shallow feeding flat (21 ft) | |
| Fall | 15 to 45 ft | dusk | Shallow feeding flat (21 ft) | |
| Winter | 20 to 60 ft | midday | Deep basin (79 ft) |
Structure-wise the chart holds 26 features, led in depth by Deep basin at roughly 79 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 Wunnummin Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Wunnummin Lake is about 80 ft (24 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1964, a decades-old survey (a transect sounding survey).
Anglers target lake whitefish, walleye, northern pike, lake sturgeon on Wunnummin Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species Ontario's MNRF recorded in the nearest surveyed lakes, filtered to this lake's depth and habitat.
Deep basin is the top-rated area: a deep basin in about 79 ft of water that rates prime for lake whitefish in summer. Open the map above to see every rated spot for each species and season.
For lake whitefish, the summer bite is best in 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 Wunnummin 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.
Hilyard Lake 15 mi · Maria Lake 19 mi · Sims Lake 19 mi · Reeb Lake 23 mi · Nibinamik Lake 24 mi · Kingfisher Lake 27 mi · Unnamed Lake 28 mi · Unnamed Lake 32 mi · Assin Lake 34 mi · Long Dog Lake 36 mi · Bradden Lake 36 mi · Cordick Lake 37 mi
See how Wunnummin Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best lake whitefish lakes in Ontario · best lake sturgeon lakes in Ontario
More water nearby: Kenora District fishing maps (1173 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.