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125-acre lake in Sudbury District, Ontario. The lake tops out around 21 ft. This chart interpolates between a real shoreline and a known maximum depth. It will point you at likely water, but it is not a navigation product. Here is how the season plays out for each species, straight from the data behind the map.
The drawn water covers 125 acres wrapped in 3 miles of bank. A middling shoreline index (1.9) gives it some bays to work without being a maze. Littoral water — the productive band under ~15 ft — makes up 90% of this chart, as modeled. Tip to tip the water measures near 0.8 mi with a 0.7-mi widest point. It sits in Sudbury District. Its nearest charted neighbour, Perching Lake, is 3 mi to the north.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. Expect a summer slide to 6 to 21 ft, then a winter hold in 3 to 20 ft. Start at Deep basin. It's a deep basin holding about 18 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 21 ft | dawn & dusk | Deep basin (18 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (18 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 6 to 21 ft before dropping to 6 to 21 ft for winter. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 3 ft. Fish it in early morning and you'll meet the bite. 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 (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 6 to 21 ft | dawn | Deep basin (18 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 6 to 21 ft | midday | Deep basin (18 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 6 to 21 ft | midday & dawn | Deep basin (18 ft) | Tungsten jig + spikes, Rattle spoon (small) |
6 pieces of structure are mapped here — Deep basin, around 18 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 Oscar Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Oscar Lake is about 21 ft (6 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target brook trout, yellow perch on Oscar Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Scroll up to the map for the complete spot list by species and season.
For brook trout, 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 Oscar 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.
Perching Lake 3 mi · Nemegosenda Lake 6 mi · Mate Lakes 7 mi · Waweya Lake 7 mi · Westover Lake 8 mi · Le Blanc Lake 10 mi · Shunsby Lake 10 mi · Raney Lake 11 mi · Serviss Lake 11 mi · Emerald Lake (lac Emerald) 11 mi · Alcorn Lake 12 mi · Matti L. 12 mi
See how Oscar Lake stacks up: best yellow perch lakes in Ontario · best brook trout lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario fishing maps or see every water on DepthScout. 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.