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158-acre lake in Timiskaming District, Ontario. The lake tops out around 6 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. Every species below gets its seasonal read from the same numbers driving the chart.
On the chart, Headwater Lake draws 160 acres inside 4.8 miles of shoreline. A development index of 2.7 means a maze of bays and points: far more casting targets than a round bowl of the same size. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. End to end it runs roughly 1.1 mi, about 0.9 mi across. The water lies in Timiskaming District. Closest neighbour on DepthScout: Corkill Lake 19, 1 mi northwest of here.
The spring pattern is a shallow one: brook trout in 1 to 6 ft. The depth story barely changes: 2 to 6 ft through summer, 1 to 6 ft in winter. The spot to know is Deep basin, a deep basin in about 5 ft of water that rates prime for brook trout in summer. Plan around early morning and the evening in the warm months. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | dawn & dusk | Main-lake point (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 2 to 6 ft | dawn & dusk | Deep basin (5 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 6 ft | midday & dawn | Main-lake point (6 ft) | Small spoon (orange), Spinner |
| Winter | 1 to 6 ft | dawn | Deep basin (5 ft) | Small jigging spoon, Tungsten jig + plastic |
Count 6 structure marks on this chart. The deepest, Main-lake point, sits near 6 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 Headwater Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Headwater Lake is about 6 ft (2 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 Headwater Lake.
Deep basin is the top-rated area: a deep basin in about 5 ft of water that rates prime for brook trout in summer. The interactive chart above rates every 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 Headwater 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.
Corkill Lake 19 1 mi · Beauty Lake 1 mi · Island Lake 1 mi · Shack Lake 1 mi · Paddle Lake 2 mi · Moose L. 2 mi · Little Southbear Lake 2 mi · Sandplains Lake 3 mi · Carmen Lake 3 mi · Southbear Lake 3 mi · Conolly Lake 3 mi · Sunshine L. 3 mi
See how Headwater Lake stacks up: best brook trout lakes in Ontario
More water nearby: Timiskaming District fishing maps (515 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.