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58-acre lake in Haliburton County, Ontario. The lake tops out around 30 ft. The depth data here comes from the Ontario MNRF survey of 1967, a decades-old survey (a transect sounding survey). Below is the species-by-species picture, pulled from the same data the map uses.
Blue Lake maps at 58 acres behind 1.9 miles of shoreline. With a 1.8 development index there's bank structure worth casting at, in moderation. Roughly 36% of the water is 15 ft or less, the band where the food chain lives. The basin spans about 0.6 mi end to end and 0.4 mi across at its widest. It sits in Haliburton County. If the bite dies, Eagle Lake is 1 mi to the south.
When the water first warms, splake slide up into 5 to 25 ft. By summer they slide out to 9 to 30 ft, and by winter most fish are in 7 to 30 ft. If you only fish one area, make it Break off the point: a drop-off around 25 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a trolled spoon at the thermocline or a white tube jig (deep) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Main-lake point (10 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 9 to 30 ft | dawn & dusk | Break off the point (25 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 9 to 30 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon, Jerkbait |
| Winter | 7 to 30 ft | dawn | Break off the point (25 ft) | Jigging spoon tipped with minnow head, Small white tube |
The spring pattern is a shallow one: lake whitefish in 9 to 30 ft. The depth story barely changes: 9 to 30 ft through summer, 9 to 30 ft in winter. Top water on the chart: Deep basin, a deep basin in the 30 ft range, prime in summer. Time it for early morning. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 9 to 30 ft | midday & dawn | Break off the point (25 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 9 to 30 ft | dawn | Deep basin (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (25 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 9 to 30 ft | midday & dawn | Deep basin (30 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 9 to 30 ft. Top water on the chart: Shallow bay flat, a weed flat in the 5 ft range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a drop-shot micro plastics or a small spoon tipped with worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay 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 | 9 to 30 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft | midday & dawn | Deep basin (30 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: rock bass in 2 to 10 ft. As the season builds they drop to 5 to 20 ft, wintering in 12 to 30 ft. Top water on the chart: Main-lake point, a point in the 10 ft range, prime in summer. Time it for the evening. Summer baits: a ned rig (small) or a marabou jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Main-lake point (10 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Main-lake point (10 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Main-lake point (10 ft) | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Deep basin (30 ft) | Tungsten jig + plastic, Small spoon + spike |
The spring pattern is a shallow one: pumpkinseed in 1 to 8 ft. As the season builds they drop to 2 to 10 ft, wintering in 6 to 18 ft. Top water on the chart: Shallow bay flat, a weed flat in the 5 ft range, prime in spring. Time it for the evening and early morning. Summer baits: a micro tube or a sponge spider (fly) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (5 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (5 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (5 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Back-bay flat (7 ft) | Tungsten ice jig + plastic, Tiny spoon |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 30 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 Blue Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Blue Lake is about 30 ft (9 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1967, a decades-old survey (a transect sounding survey).
Anglers target splake, lake whitefish, yellow perch, rock bass, pumpkinseed on Blue Lake.
Break off the point is the top-rated area: a drop-off in about 25 ft of water that rates prime for splake in summer. Open the map above to see every rated spot for each species and season.
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 Blue 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.
Eagle Lake 1 mi · Guilford Lake 2 mi · Moose Lake 2 mi · Green Canoe Lake 2 mi · Coleman Lake 2 mi · Redstone Lake 3 mi · Basshaunt Lake 3 mi · West Lake 3 mi · Bushwolf Lake 3 mi · Oblong Lake 4 mi · Cranberry Lake 4 mi · Spider Lake 4 mi
See how Blue Lake stacks up: best yellow perch lakes in Ontario · best lake whitefish lakes in Ontario · best rock bass lakes in Ontario · best splake lakes in Ontario
More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.