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Rating depth structure for rainbow trout.
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4,680-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 134 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Species by species, here's what the data says the year looks like.
Drawn out, this is 4,602 acres of water rimmed by 29 miles of bank, with 7 islands in the mix. The 3.1 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 10% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. The basin spans about 8.2 mi end to end and 2.2 mi across at its widest. The water lies in Bulkley-Nechako Regional District. The nearest mapped water is Finger Lake, 4 mi to the northwest.
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Rock reef, a rock pile in the 12 ft range, prime in fall. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Rock reef (12 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Rock reef (12 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Rock reef (12 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Rock reef (12 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. Expect a summer slide to 40 to 90 ft, then a winter hold in 25 to 70 ft. Start at Rock reef. It's a rock pile holding about 12 ft of water and rates prime come fall. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Offshore hump (20 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Break off the point (60 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (12 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Break off the point (60 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 11 structure features on Tatuk Lake; the deepest is Deep basin at about 114 ft.
Season dates, license requirements, and size and bag limits for British Columbia waters are set by the BC freshwater fishing synopsis — and special regulations can apply to Tatuk Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tatuk Lake is about 134 ft (41 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 rainbow trout, lake whitefish on Tatuk Lake.
Rock reef is the top-rated area: a rock pile in about 12 ft of water that rates prime for lake whitefish in fall. Scroll up to the map for the complete spot list by species and season.
For rainbow 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 Tatuk Lake is regulated by the BC freshwater fishing synopsis. Check the official British Columbia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Finger Lake 4 mi · Turff Lake 5 mi · Lavoie Lake 6 mi · Harp Lake 6 mi · Bodley Lake 6 mi · Duten Lake 7 mi · Jardine Lake 7 mi · Ray Lake 7 mi · Hawley Lake 8 mi · Gluten Lake 8 mi · Secord Lake 8 mi · Vivian Lake 9 mi
See how Tatuk Lake stacks up: best rainbow trout lakes in British Columbia · best lake whitefish lakes in British Columbia
More water nearby: Bulkley-Nechako Regional District fishing maps (324 charts). Browse all British Columbia 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.