Lake depth chart
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173-acre lake in Nipissing District, Ontario. The lake tops out around 67 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). What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Corkery Lake runs 175 acres with 3.6 miles of edge. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. 70% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 0.9 mi, about 0.7 mi across. The water lies in Nipissing District. For a second option, Cornick Lake lies 1 mi southwest.
Start shallow in spring: splake sit in 5 to 25 ft that time of year. Summer pushes them deeper, 25 to 60 ft, and winter fish settle into 10 to 45 ft. The spot to know is Break off the point, a drop-off in about 36 ft of water that rates prime for splake in summer. Warm-month bites cluster around early morning and the evening. Throw a trolled spoon at the thermocline or a white tube jig (deep) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Main-lake point (1 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 25 to 60 ft | dawn & dusk | Break off the point (36 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (36 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Break off the point (36 ft) | Jigging spoon tipped with minnow head, Small white tube |
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. Expect a summer slide to 20 to 67 ft, then a winter hold in 20 to 67 ft. Start at Deep basin. It's a deep basin holding about 60 ft of water and rates prime come summer. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (36 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 20 to 67 ft | dawn | Deep basin (60 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (36 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 20 to 67 ft | midday & dawn | Deep basin (60 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 15 to 35 ft. Put Break off the point first on the milk run — a drop-off near 36 ft that grades prime for fall. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (36 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (36 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (36 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 20 to 45 ft. Break off the point is the standout, a drop-off at roughly 36 ft, rated prime for winter smallmouth bass. Time it for early morning and the evening. You won't need more than a drop shot (goby/minnow) or a ned rig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (1 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (36 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (1 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (36 ft) | Blade bait, Hair jig |
Come spring, look for pumpkinseed tight to the bank in 1 to 8 ft. Expect a summer slide to 2 to 10 ft, then a winter hold in 6 to 18 ft. Start at Shallow bay flat. It's a weed flat holding about 1 ft of water and rates prime come spring. Prime time lands in the evening and early morning. A micro tube or a sponge spider (fly) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (1 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Shallow bay flat (1 ft) | Tungsten ice jig + plastic, Tiny spoon |
Start shallow in spring: brown bullhead sit in 2 to 8 ft that time of year. Summer pushes them deeper, 3 to 12 ft, and winter fish settle into 10 to 25 ft. The spot to know is Shallow bay flat, a weed flat in about 1 ft of water that rates prime for brown bullhead in spring. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 5 to 15 ft | dusk | open water | |
| Winter | 10 to 25 ft | midday | Deep basin (60 ft) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 60 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 Corkery Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Corkery Lake is about 67 ft (20 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 splake, lake whitefish, yellow perch, smallmouth bass, pumpkinseed, brown bullhead on Corkery Lake.
Break off the point is the top-rated area: a drop-off in about 36 ft of water that rates prime for splake in summer. Open the map above to see every rated spot for each species and season.
For splake, 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 Corkery 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.
Cornick Lake 1 mi · Edwards Lake 1 mi · Pat Lake 2 mi · Shaw Lake 2 mi · Kawawaymog Lake 2 mi · Little Beaver L. 2 mi · Holts L. 2 mi · Loxton Lake 2 mi · Wet Lake 3 mi · Blue L. 3 mi · Lambs Lake 3 mi · Little Tyne Lake 3 mi
See how Corkery Lake stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best lake whitefish lakes in Ontario · best splake lakes in Ontario
More water nearby: Nipissing District fishing maps (683 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. 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.