Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
314-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 20 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Thletelban Lake runs 314 acres with 5.4 miles of edge. A development index of 2.2 means a maze of bays and points: far more casting targets than a round bowl of the same size. Littoral water — the productive band under ~15 ft — makes up 80% of this chart, as modeled. Call it 1.6 mi long by 0.7 mi wide at the broadest reach. The water lies in Bulkley-Nechako Regional District. Closest neighbour on DepthScout: Ghitezli Lake, 3 mi northwest of here.
Spring puts rainbow trout in skinny water — 5 to 20 ft is the zone. Summer fish stay in 5 to 20 ft, and winter fish hold in 4 to 20 ft. Break off the point is the standout, a drop-off at roughly 9 ft, rated prime for winter rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 5 to 20 ft | dawn & dusk | Break off the point (9 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 6 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 4 to 20 ft | dawn | Break off the point (9 ft) | Jigging spoon, Tube jig (white) |
Early season lake whitefish use the shallows, holding in 6 to 20 ft. Even in summer they hold at 6 to 20 ft; winter keeps them in 6 to 20 ft. Put Deep basin first on the milk run — a deep basin near 17 ft that grades prime for summer. In summer the feeding windows fall in early morning. Tie on a blade bait vertical or a small jigging spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 20 ft | midday & dawn | Break off the point (9 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 6 to 20 ft | dawn | Deep basin (17 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 5 to 20 ft | dusk | Break off the point (9 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 6 to 20 ft | midday & dawn | Deep basin (17 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 17 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 Thletelban Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Thletelban Lake is about 20 ft (6 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 Thletelban Lake.
Deep basin is the top-rated area: a deep basin in about 17 ft of water that rates prime for lake whitefish in summer. The map above holds the full rated-spot list for every 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 Thletelban 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.
Ghitezli Lake 3 mi · Chief Louis Lake 7 mi · Glatheli Lake 8 mi · Nechako Reservoir 13 mi · Blanchet Lake 14 mi · Skins Lake 17 mi · Island Lake 18 mi · White Eye Lake 20 mi · Moss Lake 21 mi · Robison Lake 22 mi · Enz Lake 23 mi · Innes Lake 23 mi
See how Thletelban 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.