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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
12,366-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 659 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. What the data behind the map says about each species, season by season:
The drawn water covers 12,369 acres wrapped in 48.5 miles of bank — 2 islands included. With a shoreline index of 3.1, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 15% of the surface on the model — that's where the groceries are. Figure 14.3 mi of water from one end to the other, 4.4 mi at the beam. Bulkley-Nechako Regional District claims this one. If the bite dies, Capoose Lake is 10 mi to the southeast.
Spring kokanee on Tetachuck Lake hold shallow, usually 10 to 30 ft. They move out to 30 to 70 ft in summer and finish the year down in 20 to 80 ft. Put Offshore hump first on the milk run — an offshore hump near 13 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a dodger + pink/orange squid on downrigger or a kokanee bug + corn.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Offshore hump (13 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Sharp break (75 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | open water | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 20 to 80 ft | dawn | Sharp break (75 ft) | Small glow jig + corn or maggot, Tiny spoon |
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. The chart's best answer is Rock reef — rock pile, 9 ft, prime for fall. Best bite is early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Rock reef (9 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Rock reef (9 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Rock reef (9 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Rock reef (9 ft) | Jigging spoon, Tube jig (white) |
Structure-wise the chart holds 13 features, led in depth by Deep basin at roughly 560 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 Tetachuck Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tetachuck Lake is about 659 ft (201 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 kokanee, rainbow trout on Tetachuck Lake.
Rock reef is the top-rated area: a rock pile in about 9 ft of water that rates prime for rainbow trout in fall. Open the map above to see every rated spot for each species and season.
For kokanee, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Tetachuck 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.
Capoose Lake 10 mi · Entiako Lake 11 mi · Hoult Lake 13 mi · Natalkuz Lake 13 mi · White Eye Lake 13 mi · Sam Hardy Lake 15 mi · Tschick Lake 15 mi · Cow Lake 16 mi · Tetachuck Lake 16 mi · Emmett Lake 16 mi · Yellow Moose Lake 16 mi · Davidson Lake 17 mi
See how Tetachuck Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee 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.