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Shared by DepthScout anglers. Exact spots stay private, always.
21-acre lake in Parry Sound District, Ontario. The lake tops out around 16 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 21 acres of water rimmed by 1.5 miles of bank. An index of 2.4 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. End to end it runs roughly 0.7 mi. The water lies in Parry Sound District. For a second option, Gooseneck Lake lies 1 mi north.
The spring pattern is a shallow one: northern pike in 2 to 8 ft. As the season builds they drop to 5 to 16 ft, wintering in 5 to 15 ft. Top water on the chart: Shallow bay flat, a weed flat in the 3 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 5 to 16 ft | dawn & dusk | Break off the point (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 5 to 16 ft | midday & dawn | Break off the point (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
Spring pumpkinseed on Boundary Lake hold shallow, usually 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 5 to 16 ft. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. Prime time lands in the evening and early morning. The summer box starts with a micro tube or a sponge spider (fly).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (3 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (3 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 5 to 16 ft | dawn | Deep basin (14 ft) | Tungsten ice jig + plastic, Tiny spoon |
The chart marks 6 structure features on Boundary Lake; the deepest is Deep basin at about 14 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 Boundary Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Boundary 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 northern pike, pumpkinseed on Boundary Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for northern pike in spring. Scroll up to the map for the complete spot list by species and season.
For northern pike, 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 Boundary 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.
Gooseneck Lake 1 mi · Snakeskin Lake 3 mi · Gull Lake 3 mi · Clear Lake 3 mi · Lac La Vallée 3 mi · Boyd Lake 4 mi · Dogfish Lake 4 mi · Taylor Lake 5 mi · Wahwashkesh Lake 5 mi · Kashegaba Lake 5 mi · Black Lake 6 mi · Blue Lake 6 mi
See how Boundary Lake stacks up: best northern pike lakes in Ontario · best pumpkinseed 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.