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25-acre lake in Sudbury District, Ontario. The lake tops out around 23 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 26 acres, worked by 1.1 miles of shoreline. With a 1.6 development index there's bank structure worth casting at, in moderation. The shallow band under 15 ft claims about 51% of the surface on the model — that's where the groceries are. Figure 0.4 mi of water from one end to the other, 0.3 mi at the beam. It sits in Sudbury District. If the bite dies, Moon Lake is 3 mi to the east.
Early season brook trout use the shallows, holding in 2 to 15 ft. Expect a summer slide to 7 to 23 ft, then a winter hold in 3 to 20 ft. Put Deep basin first on the milk run — a deep basin near 20 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| 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 | 7 to 23 ft | dawn & dusk | Deep basin (20 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 (20 ft) | Small jigging spoon, Tungsten jig + plastic |
The chart marks 4 structure features on Key L.; the deepest is Deep basin at about 20 ft.
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 Key L. specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Key L. is about 23 ft (7 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 on Key L..
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for brook trout in summer. The map above holds the full rated-spot list for every 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 Key L. 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.
Moon Lake 3 mi · Loon Lake 3 mi · Shoe L. 3 mi · Dowes Lake 3 mi · Johnson Lake 3 mi · Bannerman Lake 4 mi · Soucie Lake 4 mi · Geneva Lake 6 mi · Clear Lake 6 mi · Bluewater Lake 6 mi · Mousseau Lake 7 mi · Ulster L. 58 7 mi
See how Key L. stacks up: 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.