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Rating depth structure for splake.
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268-acre lake in Haliburton County, Ontario. The lake tops out around 45 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 1971, a decades-old survey (an MNRF lake survey). The season-by-season read for each species follows, from the map's own numbers.
Drawn out, this is 267 acres of water rimmed by 4.6 miles of bank. The shoreline is moderately structured (index 2) — enough points and pockets to pattern. Roughly 90% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 1.5 mi, about 0.5 mi across. The water lies in Haliburton County. For a second option, Little Troutspawn Lake lies 1 mi south.
In spring, splake run shallow here, mostly 5 to 25 ft. Summer pushes them deeper, 14 to 45 ft, and winter fish settle into 10 to 45 ft. Deep basin is the standout, a deep basin at roughly 38 ft, rated prime for summer splake. Time it for early morning and the evening. You won't need more than a trolled spoon at the thermocline or a white tube jig (deep) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Break off the point (4 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 14 to 45 ft | dawn & dusk | Deep basin (38 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (4 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Deep basin (38 ft) | Jigging spoon tipped with minnow head, Small white tube |
Early season pumpkinseed use the shallows, holding in 1 to 8 ft. Expect a summer slide to 2 to 10 ft, then a winter hold in 6 to 18 ft. Put Shallow bay flat first on the milk run — a weed flat near 1 ft that grades prime for spring. In summer the feeding windows fall in the evening and early morning. Tie on a micro tube or a sponge spider (fly) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (1 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Shallow bay flat (1 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 3 to 12 ft, and winter fish settle into 10 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 1 ft, rated prime for spring brown bullhead. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 5 to 15 ft | dusk | open water | |
| Winter | 10 to 25 ft | midday | Deep basin (38 ft) |
The chart marks 6 structure features on Troutspawn Lake; the deepest is Deep basin at about 38 ft.
Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.
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 Troutspawn Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Troutspawn Lake is about 45 ft (14 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1971, a decades-old survey (an MNRF lake survey).
Anglers target splake, pumpkinseed, brown bullhead on Troutspawn Lake.
Shallow bay flat is the top-rated area: a weed flat in about 1 ft of water that rates prime for pumpkinseed in spring. Scroll up to the map for the complete spot list by 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 Troutspawn 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.
Little Troutspawn Lake 1 mi · Crane L. 1 mi · Little Louie Lake 1 mi · Louie Lake 2 mi · Fisher Lake 2 mi · Sunrise Lake 2 mi · Poorhouse Lake 2 mi · Bloody Lake 2 mi · Wolfish Lake 2 mi · Allans L. 3 mi · Greenwood Lake 3 mi · Shawandasee Lake 3 mi
See how Troutspawn Lake stacks up: best splake lakes in Ontario · best pumpkinseed lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario fishing maps or 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.