Lake depth chart
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658-acre lake in Kenora District, Ontario. The lake tops out around 3 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 1978, a decades-old survey (a transect sounding survey). Here's the year, species by species, as the scoring engine sees it.
The drawn water covers 661 acres wrapped in 5.4 miles of bank, broken up by an island. With a 1.5 development index there's bank structure worth casting at, in moderation. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. Tip to tip the water measures near 1.4 mi with a 1.3-mi widest point. It sits in Kenora District. Hawley Lakes sits 6 mi south — the closest neighbouring chart.
In spring, walleye run shallow here, mostly 1 to 3 ft. Summer keeps them at 1 to 3 ft, and they winter in 1 to 3 ft. Fall walleye concentrate at Break off the point, a good-rated drop-off around 3 ft. Fish it in the evening and early morning and you'll meet the bite. 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 | 1 to 3 ft chart-limited; documented 4 to 15 ft | dusk & dawn | Main-lake point (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 1 to 3 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (3 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 1 to 3 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (3 ft) | Jigging rap, Jig + big minnow |
| Winter | 1 to 3 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (3 ft) | Jigging spoon + minnow head, Rattle bait |
Spring puts sauger in skinny water — 1 to 3 ft is the zone. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Winter sauger concentrate at Deep basin, a good-rated deep basin around 3 ft. Warm-month bites cluster around early morning and the evening. A bottom bouncer + crawler or a 3-way rig with stickbait 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 | 1 to 3 ft chart-limited; documented 4 to 18 ft | dawn & dusk | Main-lake point (2 ft) | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 1 to 3 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (3 ft) | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 1 to 3 ft chart-limited; documented 12 to 35 ft | dusk & dawn | Break off the point (3 ft) | Jig + big minnow, Blade bait |
| Winter | 1 to 3 ft chart-limited; documented 15 to 45 ft | dusk | Deep basin (3 ft) | Heavy jigging spoon, Jig + minnow (vertical) |
The spring pattern is a shallow one: yellow perch in 1 to 3 ft. The depth story barely changes: 1 to 3 ft through summer, 1 to 3 ft in winter. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for yellow perch in spring. Plan around early morning in the warm months. 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 | 1 to 3 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 1 to 3 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (3 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 1 to 3 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (3 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 1 to 3 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (3 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, northern pike slide up into 1 to 3 ft. There's no big seasonal slide here — summer means 1 to 3 ft, winter 1 to 3 ft. Start at Shallow bay flat. It's a weed flat holding about 2 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a bucktail or a weedless spoon over cabbage 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 | 1 to 3 ft chart-limited; documented 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 1 to 3 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (2 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 1 to 3 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (2 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 1 to 3 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (2 ft) | Tip-ups, Large jigging spoon |
6 pieces of structure are mapped here — Deep basin, around 3 ft, is the deepest of them.
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 Helm Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Helm Lake is about 3 ft (1 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1978, a decades-old survey (a transect sounding survey).
Anglers target walleye, sauger, yellow perch, northern pike on Helm 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.
Break off the point is the top-rated area: a drop-off in about 3 ft of water that rates good for walleye in fall. Scroll up to the map for the complete spot list by 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 Helm 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.
Hawley Lakes 6 mi · Sandy Lake 17 mi · North Spirit Lake 18 mi · Duckling Lake 20 mi · Margot Lake 22 mi · Odlum Lake 25 mi · Setting Net Lake 25 mi · Hewitt Lake 26 mi · Kennedy Lake 29 mi · South Trout Lake 29 mi · Cornelius Lake 33 mi · Finger Lake 33 mi
See how Helm Lake stacks up: best walleye lakes in Ontario · best sauger lakes in Ontario · best northern pike 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.