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378-acre lake in Algoma District, Ontario. The lake tops out around 98 ft. The depth data here comes from the Ontario MNRF survey of 2021 (an MNRF lake survey). The rest of this page walks each species through its year, using the map's own scoring.
Spring lake trout on Upper Island Lake hold shallow, usually 10 to 40 ft. They move out to 29 to 98 ft in summer and finish the year down in 20 to 80 ft. Put Deep basin first on the milk run — a deep basin near 97 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a white tube jig (deep) or a magnum spoon on downrigger.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (43 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 29 to 98 ft | dawn | Deep basin (97 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Break off the point (43 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (43 ft) | White tube jig, Airplane jig |
In spring, cisco (lake herring) run shallow here, mostly 10 to 40 ft. Midsummer fish sit out in 40 to 80 ft before dropping to 20 to 60 ft for winter. Winter cisco (lake herring) concentrate at Break off the point, a prime-rated drop-off around 43 ft. Fish it in early morning and you'll meet the bite. You won't need more than a vertical flutter spoon (small) or a drop-shot micro plastic most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (43 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Break off the point (43 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 | Break off the point (43 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 1 ft, rated prime for spring yellow perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| 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 | Shallow feeding flat (21 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (43 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Shallow feeding flat (21 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, rock bass run shallow here, mostly 2 to 10 ft. Midsummer fish sit out in 5 to 20 ft before dropping to 12 to 30 ft for winter. Summer rock bass concentrate at Main-lake point, a prime-rated point around 1 ft. Fish it in the evening and you'll meet the bite. You won't need more than a ned rig (small) or a marabou jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Main-lake point (1 ft) | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Main-lake point (1 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Break off the point (43 ft) | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Deep basin (97 ft) | Tungsten jig + plastic, Small spoon + spike |
Early season brown bullhead use the shallows, holding in 2 to 8 ft. Summer is a 3 to 12 ft game here, winter a 10 to 25 ft one. The chart's best answer is Shallow bay flat — weed flat, 1 ft, prime for spring. Best bite is 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 (97 ft) |
Spring burbot on Upper Island Lake hold shallow, usually 25 to 70 ft. They move out to 29 to 98 ft in summer and finish the year down in 15 to 60 ft. Put Deep basin first on the milk run — a deep basin near 97 ft that grades prime for summer. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (43 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 29 to 98 ft | night & midday | Deep basin (97 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Break off the point (43 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Break off the point (43 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 7 features, led in depth by Deep basin at roughly 97 ft.
Access data: Land Information Ontario — Fishing Access Point. 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 Upper Island Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Upper Island Lake is about 98 ft (30 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2021 (an MNRF lake survey).
Anglers target lake trout, cisco (lake herring), yellow perch, rock bass, brown bullhead, burbot on Upper Island Lake.
Deep basin is the top-rated area: a deep basin in about 97 ft of water that rates prime for lake trout in summer. The interactive chart above rates every spot for each species and season.
For lake trout, 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 Upper Island 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.
Lower Island Lake 1 mi · Lake One 2 mi · Finn Lake 2 mi · Legge Lake 2 mi · Redrock Lake 3 mi · Heyden Lake 3 mi · Fillion L. 3 mi · Maki Lake 3 mi · Trout Lake 3 mi · Kaufman Lake 4 mi · St. Joe Lake 4 mi · Reserve Lake 4 mi
See how Upper Island Lake stacks up: best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best burbot lakes in Ontario · best rock bass 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.