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Recent public catches load as you reach this section.
264-acre lake in Kenora District, Ontario. The lake tops out around 26 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 1979, a decades-old survey (an MNRF lake survey). Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 263 acres wrapped in 5.9 miles of bank, with a single island in the mix. A development index of 2.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. Figure 1.2 mi of water from one end to the other, 0.9 mi at the beam. Kenora District claims this one. If the bite dies, Kim Lake is 2 mi to the southeast.
In spring, walleye run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 8 to 26 ft, and winter fish settle into 8 to 26 ft. Deep basin is the standout, a deep basin at roughly 16 ft, rated prime for winter walleye. Time it for the evening and early morning. You won't need more than a crawler harness on bottom bouncer or a deep crankbait (trolled) most summer days.
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 | Main-lake point (1 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 26 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Deep basin (16 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 26 ft chart-limited; documented 12 to 40 ft | dusk & night | Deep basin (16 ft) | Jigging rap, Jig + big minnow |
| Winter | 8 to 26 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (16 ft) | Jigging spoon + minnow head, Rattle bait |
The spring pattern is a shallow one: yellow perch in 3 to 12 ft. As the season builds they drop to 8 to 26 ft, wintering in 8 to 26 ft. Top water on the chart: Deep basin, a deep basin in the 16 ft range, prime in fall. Time it for early morning. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm 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 | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 8 to 26 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (16 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 8 to 26 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (16 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 8 to 26 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (16 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, northern pike slide up into 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. If you only fish one area, make it Shallow bay flat: a weed flat around 1 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a bucktail or a weedless spoon over cabbage rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | open water | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Deep basin (16 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Come spring, look for muskellunge tight to the bank in 3 to 12 ft. They move out to 8 to 25 ft in summer and finish the year down in 8 to 26 ft. If you only fish one area, make it Deep basin: a deep basin around 16 ft that scores prime in winter. Best bite is the evening and early morning. A double-10 bucktail or a topwater (walk-the-dog / creeper) is the honest summer answer here.
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 | dusk | Shallow bay flat (1 ft) | Smaller bucktail (#8 blades), 6" glide bait |
| Summer | 8 to 25 ft | dusk & dawn | Main-lake point (1 ft) | Double-10 bucktail, Topwater (walk-the-dog / creeper) |
| Fall | 7 to 26 ft chart-limited; documented 8 to 30 ft | midday & dusk | Deep basin (16 ft) | Big rubber (Bull Dawg style), 10"+ glide bait |
| Winter | 8 to 26 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (16 ft) | Large rubber, crawled slow |
Start shallow in spring: rock bass sit in 2 to 10 ft that time of year. Warm water sends them out to 5 to 20 ft; cold water stacks them in 8 to 26 ft. Top water on the chart: Deep basin, a deep basin in the 16 ft range, prime in winter. Fish it in the evening and you'll meet the bite. Throw a ned rig (small) or a marabou jig 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 | 2 to 10 ft | midday & dawn | Main-lake point (1 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Main-lake point (1 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | open water | Small tube jig, Inline spinner |
| Winter | 8 to 26 ft chart-limited; documented 12 to 30 ft | midday | Deep basin (16 ft) | Tungsten jig + plastic, Small spoon + spike |
When the water first warms, burbot slide up into 8 to 26 ft. There's no big seasonal slide here — summer means 8 to 26 ft, winter 7 to 26 ft. Start at Deep basin. It's a deep basin holding about 16 ft of water and rates prime come spring. The feeding windows run after dark and midday. Keep a heavy jig + cut bait rigged through the warm months.
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 | 8 to 26 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (16 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 8 to 26 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (16 ft) | Heavy jig + cut bait |
| Fall | 8 to 26 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (16 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 7 to 26 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (16 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 16 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 Under Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Under Lake is about 26 ft (8 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1979, a decades-old survey (an MNRF lake survey).
Anglers target walleye, yellow perch, northern pike, muskellunge, rock bass, burbot on Under Lake.
Deep basin is the top-rated area: a deep basin in about 16 ft of water that rates prime for walleye in winter. Open the map above to see every rated spot for each 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 Under 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.
Kim Lake 2 mi · Sleen Lake 5 mi · Race Lake 5 mi · Rao Lake 5 mi · Pert Lake 6 mi · Carling Lake 7 mi · Chiki Lake 7 mi · Lynxpaw Lake 10 mi · St. Raphael Lake 12 mi · Dagmar Lake 12 mi · Ragged Wood Lake 12 mi · Udly Lake 13 mi
See how Under Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best muskellunge lakes in Ontario · best yellow perch 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.