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Rating depth structure for brown bullhead.
Shared by DepthScout anglers. Exact spots stay private, always.
20-acre lake in Parry Sound District, Ontario. The lake tops out around 16 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Species by species, here's what the data says the year looks like.
Petty Lake maps at 20 acres behind 1.1 miles of shoreline. With a 1.7 development index there's bank structure worth casting at, in moderation. Roughly 83% of the water is 15 ft or less as modeled, the band where the food chain lives. Figure 0.4 mi of water from one end to the other, 0.2 mi at the beam. Parry Sound District claims this one. If the bite dies, Turtle Lake is 2 mi to the west.
When the water first warms, brown bullhead slide up into 2 to 8 ft. Summer is a 3 to 12 ft game here, winter a 5 to 16 ft one. Start at Deep basin. It's a deep basin holding about 14 ft of water and rates prime come winter. The feeding windows run after dark and the evening.
| 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 (14 ft) | |
| Fall | 5 to 15 ft | dusk | Deep basin (14 ft) | |
| Winter | 5 to 16 ft | midday | Deep basin (14 ft) |
Petty Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 14 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 Petty Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Petty Lake is about 16 ft (5 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 brown bullhead on Petty Lake.
Deep basin is the top-rated area: a deep basin in about 14 ft of water that rates prime for brown bullhead in winter. The interactive chart above rates every spot for each species and season.
For brown bullhead, the summer bite is best in after dark 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 Petty 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.
Turtle Lake 2 mi · Ponsford Lake 3 mi · Gilbank Lake 3 mi · Star Lake 3 mi · Trout Lake 4 mi · Ten Mile Lake 4 mi · Long Lake 4 mi · Mutton Lake 4 mi · Brush Lake 5 mi · Whitefish Lake 5 mi · Sucker Lake 5 mi · Day Lake 5 mi
See how Petty Lake stacks up: best brown bullhead lakes in Ontario
More water nearby: Parry Sound District fishing maps (441 charts). Browse all Ontario fishing maps or 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.