Sign inSign up free Sign inSign up free Sign inSign up freeShared by DepthScout anglers. Exact spots stay private, always.
105-acre lake in Algoma District, Ontario. The lake tops out around 72 ft. The depth data here comes from the Ontario MNRF survey of 2009 (an MNRF lake survey). Every species below gets its seasonal read from the same numbers driving the chart.
The drawn water covers 105 acres wrapped in 2.4 miles of bank. With a 1.6 development index there's bank structure worth casting at, in moderation. Roughly 21% of the water is 15 ft or less, the band where the food chain lives. The basin spans about 0.8 mi end to end and 0.4 mi across at its widest. It sits in Algoma District. Mystery Lake sits 1 mi northeast — the closest neighbouring chart.
Early season brook trout use the shallows, holding in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. Put Main-lake point first on the milk run — a point near 14 ft that grades prime for spring. 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 (14 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | open water | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (14 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (10 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 72 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 Sill Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Sill Lake is about 72 ft (22 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2009 (an MNRF lake survey).
Anglers target brook trout on Sill Lake.
Main-lake point is the top-rated area: a point in about 14 ft of water that rates prime for brook trout in spring. Open the map above to see every rated spot for each 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 Sill 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.
Mystery Lake 1 mi · Robertson Lake 1 mi · Bone Lake 2 mi · Bojack Lake 3 mi · Pickard Lake 4 mi · Tupper Lake 4 mi · Walker Lake 5 mi · Evans Lake 5 mi · Weckstrom Lake 6 mi · Leonard Lake 6 mi · Legge Lake 7 mi · Upper Island Lake 7 mi
See how Sill Lake stacks up: best brook trout 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.