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Shared by DepthScout anglers. Exact spots stay private, always.
140-acre lake in Nipissing District, Ontario. The lake tops out around 30 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. What the data behind the map says about each species, season by season:
The drawn water covers 141 acres wrapped in 3.4 miles of bank. A middling shoreline index (2) gives it some bays to work without being a maze. Littoral water — the productive band under ~15 ft — makes up 73% of this chart, as modeled. The basin spans about 1.2 mi end to end and 0.4 mi across at its widest. It sits in Nipissing District. If the bite dies, Lynx Lake is 2 mi to the east.
When the water first warms, brook trout slide up into 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 26 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
| 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 | 10 to 30 ft | dawn & dusk | Deep basin (26 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 | Break off the point (14 ft) | Small jigging spoon, Tungsten jig + plastic |
The chart marks 6 structure features on Plumb Lake; the deepest is Deep basin at about 26 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 Plumb Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Plumb Lake is about 30 ft (9 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 Plumb Lake.
Deep basin is the top-rated area: a deep basin in about 26 ft of water that rates prime for brook trout in summer. 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 Plumb 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.
Lynx Lake 2 mi · Luckless Lake 2 mi · Perley Lake 3 mi · Robinson Lake 4 mi · Catfish Lake 4 mi · Cuckoo Lake 4 mi · Calumet Lake 4 mi · Whiskyjack Lake 5 mi · Burntroot Lake 5 mi · Carl Wilson Lake 7 mi · Lake La Muir 7 mi · Hogan Lake 8 mi
See how Plumb Lake stacks up: best brook trout lakes in Ontario
More water nearby: Nipissing District fishing maps (683 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.