Lake depth chart
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Rating depth structure for rainbow trout.
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437-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 33 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 437 acres, worked by 5.6 miles of shoreline. A middling shoreline index (1.9) gives it some bays to work without being a maze. The shallow band under 15 ft claims about 65% of the surface on the model — that's where the groceries are. End to end it runs roughly 1.4 mi, about 0.8 mi across. It sits in Bulkley-Nechako Regional District. If the bite dies, Wudtsi Lake is 6 mi to the northeast.
When the water first warms, rainbow trout slide up into 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 7 to 33 ft. If you only fish one area, make it Break off the point: a drop-off around 15 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.
| 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 | 8 to 30 ft | dawn & dusk | Break off the point (15 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 33 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 33 ft | dawn | Break off the point (15 ft) | Jigging spoon, Tube jig (white) |
In spring, lake whitefish run shallow here, mostly 10 to 33 ft. Summer keeps them at 10 to 33 ft, and they winter in 10 to 33 ft. Deep basin is the standout, a deep basin at roughly 28 ft, rated prime for summer lake whitefish. Time it for early morning. You won't need more than a blade bait vertical or a small jigging spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 33 ft | midday & dawn | Break off the point (15 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 10 to 33 ft | dawn | Deep basin (28 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (15 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 10 to 33 ft | midday & dawn | Deep basin (28 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 6 structure features on Ahdatay Lake; the deepest is Deep basin at about 28 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 Ahdatay Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Ahdatay Lake is about 33 ft (10 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 Ahdatay Lake.
Deep basin is the top-rated area: a deep basin in about 28 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 Ahdatay 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.
Wudtsi Lake 6 mi · Klawli Lake 9 mi · Dia Lake 10 mi · Tsaydaychi Lake 10 mi · Dukaihoonli Lake 12 mi · Tamasgale Lake 15 mi · Airline Lake 15 mi · Electra Lake 16 mi · Albert Lake 16 mi · Tlutsacho Lake 16 mi · Calais Lake 17 mi · Macdonald Lake 18 mi
See how Ahdatay 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.