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5,076-acre lake in Algoma District, Ontario. The lake tops out around 30 ft. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
On the chart, Opasatika Lake draws 5,099 acres inside 55.1 miles of shoreline — 48 islands included. That shoreline is heavily fingered (development index 5.5) — bays, points and pockets everywhere, which multiplies the fishable edge. 69% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 6.1 mi end to end and 4.1 mi across at its widest. You'll find it in Algoma District. The nearest mapped water is Opasatika L. 14, 2 mi to the northwest.
Spring cisco (lake herring) on Opasatika Lake hold shallow, usually 8 to 30 ft. Depth-wise the year is flat: 9 to 30 ft in summer, 9 to 30 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 30 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 30 ft | dawn & dusk | Deep basin (30 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 9 to 30 ft | dawn | Deep basin (30 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Gravel shoal (4 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 9 to 30 ft | dawn | Deep basin (30 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
When the water first warms, walleye slide up into 4 to 15 ft. By summer they slide out to 9 to 30 ft, and by winter most fish are in 9 to 30 ft. If you only fish one area, make it Gravel shoal: a gravel shoal around 4 ft that scores prime in spring. In summer the feeding windows fall in the evening and early morning. Keep a crawler harness on bottom bouncer or a deep crankbait (trolled) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Gravel shoal (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 9 to 30 ft | dusk & dawn | Sharp break (17 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 9 to 30 ft | dusk & night | Sharp break (17 ft) | Jigging rap, Jig + big minnow |
| Winter | 9 to 30 ft | dusk & dawn | Deep basin (30 ft) | Jigging spoon + minnow head, Rattle bait |
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 9 to 30 ft one. Start at Deep basin. It's a deep basin holding about 30 ft of water and rates prime come fall. The feeding windows run early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Feeding flat (10 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (30 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 9 to 30 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft | midday & dawn | Deep basin (30 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: northern pike in 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. The spot to know is Sharp break, a drop-off in about 17 ft of water that rates prime for northern pike in fall. Plan around early morning and the evening in the warm months. 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 (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Sharp break (17 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Sharp break (17 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Feeding flat (10 ft) | Tip-ups, Large jigging spoon |
In spring, burbot run shallow here, mostly 9 to 30 ft. Summer keeps them at 9 to 30 ft, and they winter in 8 to 30 ft. Spring burbot concentrate at Deep basin, a prime-rated deep basin around 30 ft. Fish it in after dark and midday and you'll meet the bite. You won't need more than a heavy jig + cut bait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 9 to 30 ft | night & dusk | Deep basin (30 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 9 to 30 ft | night & midday | Deep basin (30 ft) | Heavy jig + cut bait |
| Fall | 9 to 30 ft | night & dusk | Deep basin (30 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 8 to 30 ft | night & dusk | Deep basin (30 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Opasatika Lake carries 14 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 30 ft down.
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 Opasatika Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Opasatika Lake is about 30 ft (9 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey).
Anglers target cisco (lake herring), walleye, yellow perch, northern pike, burbot on Opasatika Lake.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for cisco (lake herring) in spring. Scroll up to the map for the complete spot list by 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 Opasatika 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.
Opasatika L. 14 2 mi · Opasatika Lake 15 2 mi · Inlet Lake 3 mi · Big Rice Lake 3 mi · Opasatika Lake 16 3 mi · Penelton Lake 3 mi · Little Rice Lake 4 mi · Opasakita Lake 12 4 mi · Usnac Lake 5 mi · Abbot Lake 5 5 mi · Cromlech Lake 14 5 mi · Opasatika Lake 4 6 mi
See how Opasatika Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best burbot lakes in Ontario
More water nearby: Algoma District fishing maps (1026 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.