Lake depth chart
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Rating depth structure for rainbow trout.
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329-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 39 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. The season-by-season read for each species follows, from the map's own numbers.
The outline encloses 329 acres, worked by 4.2 miles of shoreline — one island included. With a 1.6 development index there's bank structure worth casting at, in moderation. About 39% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 1.5 mi of water from one end to the other, 0.5 mi at the beam. It sits in Bulkley-Nechako Regional District. Bentzi Lake sits 3 mi northwest — the closest neighbouring chart.
When the water first warms, burbot slide up into 12 to 39 ft. There's no big seasonal slide here — summer means 12 to 39 ft, winter 10 to 39 ft. If you only fish one area, make it Deep basin: a deep basin around 33 ft that scores prime in spring. In summer the feeding windows fall in after dark and midday. Keep a heavy jig + cut bait rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 12 to 39 ft | night & dusk | Deep basin (33 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 12 to 39 ft | night & midday | Deep basin (33 ft) | Heavy jig + cut bait |
| Fall | 12 to 39 ft | night & dusk | Deep basin (33 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 10 to 39 ft | night & dusk | Deep basin (33 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Early season kokanee use the shallows, holding in 10 to 30 ft. Expect a summer slide to 12 to 39 ft, then a winter hold in 10 to 39 ft. Put Deep basin first on the milk run — a deep basin near 33 ft that grades prime for summer. In summer the feeding windows fall in early morning. Tie on a dodger + pink/orange squid on downrigger or a kokanee bug + corn and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Deep basin (33 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 12 to 39 ft | dawn | Deep basin (33 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 39 ft | dawn | Deep basin (33 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 10 to 39 ft | dawn | Deep basin (33 ft) | Small glow jig + corn or maggot, Tiny spoon |
Spring rainbow trout on Copley Lake hold shallow, usually 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 8 to 39 ft. The chart's best answer is Break off the point — drop-off, 18 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (10 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (18 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 39 ft | dawn | Break off the point (18 ft) | Jigging spoon, Tube jig (white) |
Start shallow in spring: lake whitefish sit in 12 to 39 ft that time of year. They don't go far with the seasons — 12 to 39 ft covers summer, 12 to 39 ft covers winter. The spot to know is Deep basin, a deep basin in about 33 ft of water that rates prime for lake whitefish in summer. Warm-month bites cluster around early morning. Throw a blade bait vertical or a small jigging spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 12 to 39 ft | midday & dawn | Break off the point (18 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 12 to 39 ft | dawn | Deep basin (33 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (18 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 12 to 39 ft | midday & dawn | Deep basin (33 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 6 structure features on Copley Lake; the deepest is Deep basin at about 33 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 Copley Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Copley Lake is about 39 ft (12 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 burbot, kokanee, rainbow trout, lake whitefish on Copley Lake.
Deep basin is the top-rated area: a deep basin in about 33 ft of water that rates prime for burbot in spring. Open the map above to see every rated spot for each species and season.
For burbot, the summer bite is best in after dark and midday. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Copley 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.
Bentzi Lake 3 mi · Triangle Lake 4 mi · Hallett Lake 4 mi · Bungalow Lake 6 mi · Tahultzu Lake 8 mi · Laurie Lake 10 mi · Holy Cross Lake 10 mi · Chief Gray Lake 11 mi · Fish Lake 11 mi · Murray Lake 11 mi · Hobson Lake 12 mi · Cabin Lake 12 mi
See how Copley Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best lake whitefish lakes in British Columbia · best burbot 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.