Lake depth chart
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Shared by DepthScout anglers. Exact spots stay private, always.
375-acre lake in Parry Sound District, Ontario. The lake tops out around 76 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Smyth Lake runs 381 acres with 7.6 miles of edge, broken up by an island. An index of 2.8 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 59% of the surface on the model — that's where the groceries are. Call it 1.6 mi long by 1 mi wide at the broadest reach. The water lies in Parry Sound District. Closest neighbour on DepthScout: Loxton Lake, 1 mi east of here.
When the water first warms, cisco (lake herring) slide up into 10 to 40 ft. By summer they slide out to 23 to 76 ft, and by winter most fish are in 20 to 60 ft. If you only fish one area, make it Deep basin: a deep basin around 65 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a vertical flutter spoon (small) or a drop-shot micro plastic rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (34 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 23 to 76 ft | dawn | Deep basin (65 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Deep basin (65 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring yellow perch on Smyth Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Shallow bay flat — weed flat, 6 ft, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (34 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (34 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (34 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts smallmouth bass in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 20 to 45 ft. Fall smallmouth bass concentrate at Main-lake point, a prime-rated point around 19 ft. Warm-month bites cluster around early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | open water | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Main-lake point (19 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (19 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (34 ft) | Blade bait, Hair jig |
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 10 to 25 ft. Top water on the chart: Shallow bay flat, a weed flat in the 6 ft range, prime in spring. 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 (6 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (6 ft) | |
| Fall | 5 to 15 ft | dusk | Shallow bay flat (6 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (65 ft) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 65 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 Smyth Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Smyth Lake is about 76 ft (23 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 cisco (lake herring), yellow perch, smallmouth bass, brown bullhead on Smyth Lake.
Deep basin is the top-rated area: a deep basin in about 65 ft of water that rates prime for cisco (lake herring) in summer. The map above holds the full rated-spot list for every species and season.
For cisco (lake herring), the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Smyth 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.
Loxton Lake 1 mi · Hinsburger Lake 1 mi · Osborne Lake 2 mi · Little Beaver L. 2 mi · Lambs Lake 2 mi · Shaw Lake 3 mi · East Tower L. 3 mi · Cornick Lake 3 mi · Tower Lake 3 mi · Sausage Lake 3 mi · Genesee Lake 3 mi · Corkery Lake 3 mi
See how Smyth Lake stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best cisco (lake herring) lakes in Ontario · 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.