Lake depth chart
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329-acre lake in Rainy River District, Ontario. The lake tops out around 46 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 328 acres of water rimmed by 3.2 miles of bank. Nearly circular (index 1.3), so the story is the bottom, not the bank. The shallow band under 15 ft claims about 31% of the surface on the model — that's where the groceries are. End to end it runs roughly 0.9 mi, about 0.9 mi across. You'll find it in Rainy River District. The nearest mapped water is Roman Lake, 1 mi to the west.
Start shallow in spring: splake sit in 5 to 25 ft that time of year. Warm water sends them out to 14 to 46 ft; cold water stacks them in 10 to 45 ft. Top water on the chart: Break off the point, a drop-off in the 21 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. Throw a trolled spoon at the thermocline or a white tube jig (deep) 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 | 5 to 25 ft | dawn & dusk | Main-lake point (12 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 14 to 46 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Break off the point (21 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (12 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Break off the point (21 ft) | Jigging spoon tipped with minnow head, Small white tube |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 15 to 35 ft one. The chart's best answer is Shallow bay flat — weed flat, 6 ft, prime for spring. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (21 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (21 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (39 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 39 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 Bold Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Bold Lake is about 46 ft (14 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target splake, yellow perch, northern pike on Bold Lake.
Break off the point is the top-rated area: a drop-off in about 21 ft of water that rates prime for splake in summer. Every other rated spot, per species and season, is on the map above.
For splake, 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 Bold 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.
Roman Lake 1 mi · Grey Trout Lake 2 mi · South Crook Lake 3 mi · Style Lake 3 mi · Mount Lake 4 mi · Crook Lake 4 mi · Little Grey Trout Lake 4 mi · Sandbeach Lake 5 mi · Secret Lake 5 mi · Clearwater West Lake 6 mi · L. 42 6 mi · Rutter Lake 6 mi
See how Bold Lake stacks up: best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best splake lakes in Ontario
More water nearby: Rainy River District fishing maps (257 charts). Browse all Ontario fishing maps. See every water on DepthScout. 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.