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Rating depth structure for walleye.
Recent public catches load as you reach this section.
7,408-acre lake in Kenora District, Ontario. The lake tops out around 7 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 1978, a decades-old survey (a transect sounding survey). Here is how the season plays out for each species, straight from the data behind the map.
On the chart, Opasquia Lake draws 7,441 acres inside 32.8 miles of shoreline, broken up by 19 islands. The 2.7 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout. Call it 5.5 mi long by 4.2 mi wide at the broadest reach. The water lies in Kenora District. For a second option, Finger Lake lies 10 mi south.
Spring lake whitefish on Opasquia Lake hold shallow, usually 2 to 7 ft. Depth-wise the year is flat: 2 to 7 ft in summer, 2 to 7 ft once it turns cold. The chart's best answer is Gravel shoal — gravel shoal, 2 ft, prime for spring. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 15 to 45 ft | midday & dawn | Gravel shoal (2 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 2 to 7 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (7 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 2 to 7 ft chart-limited; documented 8 to 30 ft | dusk | Gravel shoal (2 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 2 to 7 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (7 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring cisco (lake herring) on Opasquia Lake hold shallow, usually 2 to 7 ft. Depth-wise the year is flat: 2 to 7 ft in summer, 2 to 7 ft once it turns cold. The chart's best answer is Deep basin — deep basin, 7 ft, prime for spring. Prime time lands in early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 10 to 40 ft | dawn & dusk | Deep basin (7 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 2 to 7 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (7 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 1 to 7 ft chart-limited; documented 5 to 25 ft | dusk & dawn | Gravel shoal (2 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 2 to 7 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (7 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
When the water first warms, walleye slide up into 2 to 7 ft. There's no big seasonal slide here — summer means 2 to 7 ft, winter 2 to 7 ft. Start at Gravel shoal. It's a gravel shoal holding about 2 ft of water and rates prime come spring. The feeding windows run the evening and early morning. Keep a crawler harness on bottom bouncer or a deep crankbait (trolled) rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 4 to 15 ft | dusk & dawn | Gravel shoal (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 2 to 7 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (7 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 2 to 7 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (7 ft) | Jigging rap, Jig + big minnow |
| Winter | 2 to 7 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (7 ft) | Jigging spoon + minnow head, Rattle bait |
Early season sauger use the shallows, holding in 2 to 7 ft. Even in summer they hold at 2 to 7 ft; winter keeps them in 2 to 7 ft. The chart's best answer is Deep basin — deep basin, 7 ft, prime for winter. Best bite is early morning and the evening. Tie on a bottom bouncer + crawler or a 3-way rig with stickbait and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 4 to 18 ft | dawn & dusk | Gravel shoal (2 ft) | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 2 to 7 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (7 ft) | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 2 to 7 ft chart-limited; documented 12 to 35 ft | dusk & dawn | Break off the point (7 ft) | Jig + big minnow, Blade bait |
| Winter | 2 to 7 ft chart-limited; documented 15 to 45 ft | dusk | Deep basin (7 ft) | Heavy jigging spoon, Jig + minnow (vertical) |
When the water first warms, yellow perch slide up into 2 to 7 ft. There's no big seasonal slide here — summer means 2 to 7 ft, winter 2 to 7 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 ft that scores prime in spring. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 2 to 7 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (7 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 2 to 7 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (7 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 2 to 7 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (7 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: northern pike in 2 to 7 ft. The depth story barely changes: 2 to 7 ft through summer, 2 to 7 ft in winter. Top water on the chart: Shallow bay flat, a weed flat in the 2 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 2 to 7 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (2 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 2 to 7 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (2 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 2 to 7 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (2 ft) | Tip-ups, Large jigging spoon |
13 pieces of structure are mapped here — Deep basin, around 7 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 Opasquia Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Opasquia Lake is about 7 ft (2 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1978, a decades-old survey (a transect sounding survey).
Anglers target lake whitefish, cisco (lake herring), walleye, sauger, yellow perch, northern pike on Opasquia Lake.
Gravel shoal is the top-rated area: a gravel shoal in about 2 ft of water that rates prime for lake whitefish in spring. The interactive chart above rates every spot for each species and season.
For lake whitefish, 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 Opasquia 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.
Finger Lake 10 mi · Cocos Lake 27 mi · Sandy Lake 28 mi · South Trout Lake 29 mi · Favourable Lake 31 mi · Setting Net Lake 36 mi · Pasateko Lake 41 mi · Helm Lake 43 mi · Seeber Lake 43 mi · Durrell Lake 44 mi · Red Sucker River 46 mi · Hawley Lakes 47 mi
See how Opasquia Lake stacks up: best walleye lakes in Ontario · best sauger lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario
More water nearby: Kenora District fishing maps (1173 charts). Browse all Ontario fishing maps. 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.