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168-acre lake in Sudbury District, Ontario. The lake tops out around 118 ft. The depth data here comes from the Ontario MNRF survey of 1983 (a transect sounding survey). Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 169 acres of water rimmed by 5.8 miles of bank, with 2 islands in the mix. That shoreline is heavily fingered (development index 3.2) — bays, points and pockets everywhere, which multiplies the fishable edge. Roughly 23% of the water is 15 ft or less, the band where the food chain lives. Tip to tip the water measures near 1.7 mi with a 0.5-mi widest point. You'll find it in Sudbury District. Closest neighbour on DepthScout: Teal Lake, 1 mi northwest of here.
Spring yellow perch on Keelow Lake hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 15 to 35 ft. Put Shallow bay flat first on the milk run — a weed flat near 4 ft that grades prime for spring. The feeding windows run 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 (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (10 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (10 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (105 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts northern pike in skinny water — 2 to 8 ft is the zone. Warm water sends them out to 8 to 20 ft; cold water stacks them in 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (4 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Back-bay flat (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Back-bay flat (7 ft) | Tip-ups, Large jigging spoon |
6 pieces of structure are mapped here — Deep basin, around 105 ft, is the deepest of them.
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 Keelow Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Keelow Lake is about 118 ft (36 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1983 (a transect sounding survey).
Anglers target yellow perch, northern pike on Keelow Lake.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for yellow perch in spring. The map above holds the full rated-spot list for every species and season.
For yellow perch, 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 Keelow 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.
Teal Lake 1 mi · Lineus Lake 3 mi · Lawless Lake 5 mi · Essem Lake 8 mi · Puswawa Lake 10 mi · Corrigan Lake 11 mi · Korpela Lake 12 mi · Antler Lake 14 mi · North Emerson Lake 15 mi · Sheppard Lake 15 mi · Cork Lake 16 mi · McEwen Lake 16 mi
See how Keelow Lake stacks up: best northern pike lakes in Ontario · best yellow perch lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.