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111-acre lake in Thunder Bay District, Ontario. The lake tops out around 256 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. Here's the year, species by species, as the scoring engine sees it.
On the chart, Fishnet Lake draws 112 acres inside 3.8 miles of shoreline, broken up by 4 islands. The 2.5 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The shallow band under 15 ft claims about 14% of the surface — that's where the groceries are. Figure 0.9 mi of water from one end to the other, 0.4 mi at the beam. You'll find it in Thunder Bay District. For a second option, Box Lake lies 1 mi southwest.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. Shallow bay flat is the standout, a feeding flat at roughly 7 ft, rated good for spring brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (7 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 | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (7 ft) | Small jigging spoon, Tungsten jig + plastic |
The chart marks 6 structure features on Fishnet Lake; the deepest is Deep basin at about 251 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 Fishnet Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Fishnet Lake is about 256 ft (78 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target brook trout on Fishnet Lake.
Shallow bay flat is the top-rated area: a feeding flat in about 7 ft of water that rates good for brook trout in spring. Every other rated spot, per species and season, is on the map above.
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 Fishnet 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.
Box Lake 1 mi · Eric Lake 1 mi · Diablo Lake 2 mi · Santoy Lake 2 mi · Sister Lakes 4 mi · Bews Lake 6 mi · Cairngorm Lake 8 mi · Craig Lake 8 mi · Found Lake 9 mi · Ducell Lake 10 mi · Davidson Lake 10 mi · Foxtrap Lake 11 mi
See how Fishnet Lake stacks up: best brook trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 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.