Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
278-acre lake in Sudbury District, Ontario. The lake tops out around 33 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. What the data behind the map says about each species, season by season:
On the chart, Osbourne Lake draws 282 acres inside 10.2 miles of shoreline — one island included. The 4.4 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Littoral water — the productive band under ~15 ft — makes up 78% of this chart, as modeled. The basin spans about 2.7 mi end to end and 0.6 mi across at its widest. You'll find it in Sudbury District. For a second option, Bigwood Lake lies 3 mi southeast.
The spring pattern is a shallow one: lake trout in 8 to 33 ft. The depth story barely changes: 10 to 33 ft through summer, 8 to 33 ft in winter. The spot to know is Deep basin, a deep basin in about 28 ft of water that rates prime for lake trout in summer. Plan around early morning in the warm months. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 33 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 10 to 33 ft | dawn | Deep basin (28 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 7 to 33 ft | dusk & dawn | Main-lake point (8 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 8 to 33 ft | dawn | Deep basin (28 ft) | White tube jig, Airplane jig |
6 pieces of structure are mapped here — Deep basin, around 28 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 Osbourne Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Osbourne Lake is about 33 ft (10 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 lake trout on Osbourne Lake.
Deep basin is the top-rated area: a deep basin in about 28 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 Osbourne 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.
Bigwood Lake 3 mi · McGrindle Lake 3 mi · Michaud Lake 5 mi · Ironside Lake 5 mi · Venetian Lake 7 mi · Sandcherry Lake 7 mi · Kumska Lake 7 mi · Mule Lake 7 mi · Sandfly Lake 8 mi · South Lake 8 mi · Hutton Lake 9 mi · Roland Lake 9 mi
See how Osbourne Lake stacks up: best lake 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.