Lake depth chart
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Reopens January 1 · FMZ 15 zone-wide season. Lake-specific exceptions and sanctuaries can differ — check the official summary before you go.
Recent public catches load as you reach this section.
15-acre lake in Muskoka District Municipality, Ontario. The lake tops out around 16 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). Species by species, here's what the data says the year looks like.
Drawn out, this is 15 acres of water rimmed by 0.8 miles of bank. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. Call it 0.3 mi long. The water lies in Muskoka District Municipality. Closest neighbour on DepthScout: Axe Lake, 3 mi west of here.
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Warm water sends them out to 5 to 16 ft; cold water stacks them in 2 to 16 ft. Top water on the chart: Deep basin, a deep basin in the 8 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm 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 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 5 to 16 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (8 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 16 ft chart-limited; documented 3 to 20 ft | dawn | Deep basin (8 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. As the season builds they drop to 3 to 12 ft, wintering in 5 to 16 ft. Top water on the chart: Deep basin, a deep basin in the 8 ft range, prime in winter. Time it for after dark and the evening.
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 8 ft | dusk & night | open water | |
| Summer | 3 to 12 ft | night & dusk | Deep basin (8 ft) | |
| Fall | 5 to 15 ft | dusk | Deep basin (8 ft) | |
| Winter | 5 to 16 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (8 ft) |
Yearleys P. 3 carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 8 ft down.
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 Yearleys P. 3 specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Yearleys P. 3 is about 16 ft (5 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 brook trout, brown bullhead on Yearleys P. 3.
Deep basin is the top-rated area: a deep basin in about 8 ft of water that rates prime for brown bullhead in winter. The interactive chart above rates every spot for each species and season.
For brook trout, 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 Yearleys P. 3 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.
Axe Lake 3 mi · Long Lake 4 mi · Buck Lake 4 mi · Fox Lake 4 mi · Golden City Lake 4 mi · Tabor Lake 5 mi · Johnson L. 6 mi · Round Lake 7 mi · Meadow Lake 7 mi · Stanzel Lake 7 mi · Clark Lake 7 mi · Haller Lake 8 mi
See how Yearleys P. 3 stacks up: best brook trout lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Muskoka District Municipality fishing maps (276 charts). Browse all Ontario fishing maps. See every water on DepthScout. Depth data: Ontario Ministry of Natural Resources and Forestry, Lake survey data (Open Government Licence – Ontario). 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.