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35-acre lake in Thunder Bay District, Ontario. The lake tops out around 69 ft. The depth data here comes from the Ontario MNRF survey of 2008 (an MNRF lake survey). What the data behind the map says about each species, season by season:
On the chart, Tarrison Lake B draws 36 acres inside 1.4 miles of shoreline. Index 1.7 on the shoreline: a few honest points and pockets, nothing labyrinthine. The shallow band under 15 ft claims about 16% of the surface — that's where the groceries are. Tip to tip the water measures near 0.5 mi with a 0.2-mi widest point. You'll find it in Thunder Bay District. The nearest mapped water is Danielle Lake, 2 mi to the northeast.
The spring pattern is a shallow one: splake in 5 to 25 ft. Midsummer fish sit out in 25 to 60 ft before dropping to 10 to 45 ft for winter. The spot to know is Break off the point, a drop-off in about 37 ft of water that rates prime for splake in summer. Plan around early morning and the evening in the warm months. Summer baits: a trolled spoon at the thermocline or a white tube jig (deep) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Main-lake point (15 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 25 to 60 ft | dawn & dusk | Break off the point (37 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (15 ft) | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Break off the point (37 ft) | Jigging spoon tipped with minnow head, Small white tube |
Tarrison Lake B carries 5 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 67 ft down.
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 Tarrison Lake B specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Tarrison Lake B is about 69 ft (21 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2008 (an MNRF lake survey).
Anglers target splake on Tarrison Lake B.
Break off the point is the top-rated area: a drop-off in about 37 ft of water that rates prime for splake in summer. Open the map above to see every rated spot for each species and season.
For splake, 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 Tarrison Lake B 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.
Danielle Lake 2 mi · Jessica Lake 2 mi · Annette Lake 4 mi · McMullen Lake 10 mi · Garden Lake 11 mi · Chisamore Lake 11 mi · Upper Wabikon Lake 11 mi · Whistle Lake 12 mi · Decross Lake 12 mi · Heaven Lake 13 mi · Handley Lake 13 mi · Gennis Lake 13 mi
See how Tarrison Lake B stacks up: best splake 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.