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.
2,774-acre lake in Bulkley-Nechako Regional District, British Columbia. The lake tops out around 52 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. What the data behind the map says about each species, season by season:
The outline encloses 2,904 acres, worked by 17.9 miles of shoreline. An index of 2.4 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 19% of this chart, as modeled. End to end it runs roughly 7.4 mi, about 1.3 mi across. Bulkley-Nechako Regional District claims this one. If the bite dies, Nellian Lake is 7 mi to the northeast.
Spring burbot on Decker Lake hold shallow, usually 16 to 52 ft. Depth-wise the year is flat: 16 to 52 ft in summer, 13 to 52 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 44 ft that grades prime for spring. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 16 to 52 ft | night & dusk | Deep basin (44 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 16 to 52 ft | night & midday | Deep basin (44 ft) | Heavy jig + cut bait |
| Fall | 16 to 52 ft | night & dusk | Deep basin (44 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 13 to 52 ft | night & dusk | Deep basin (44 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Come spring, look for kokanee tight to the bank in 10 to 30 ft. They move out to 16 to 52 ft in summer and finish the year down in 13 to 52 ft. If you only fish one area, make it Deep basin: a deep basin around 44 ft that scores prime in summer. Best bite is early morning. A dodger + pink/orange squid on downrigger or a kokanee bug + corn is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Break off the point (23 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 16 to 52 ft | dawn | Deep basin (44 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | Deep basin (44 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 13 to 52 ft | dawn | Deep basin (44 ft) | Small glow jig + corn or maggot, Tiny spoon |
When the water first warms, rainbow trout slide up into 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. Start at Break off the point. It's a drop-off holding about 23 ft of water and rates prime come winter. The feeding windows run 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 (13 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (23 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (13 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (23 ft) | Jigging spoon, Tube jig (white) |
In spring, lake whitefish run shallow here, mostly 15 to 45 ft. Midsummer fish sit out in 16 to 52 ft before dropping to 16 to 52 ft for winter. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 44 ft. Fish it in early morning and you'll meet the bite. 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 | 15 to 45 ft | midday & dawn | Break off the point (23 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 16 to 52 ft | dawn | Deep basin (44 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (8 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 16 to 52 ft | midday & dawn | Deep basin (44 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 14 structure features on Decker Lake; the deepest is Deep basin at about 44 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 Decker Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Decker Lake is about 52 ft (16 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 Decker Lake.
Deep basin is the top-rated area: a deep basin in about 44 ft of water that rates prime for burbot in spring. The interactive chart above rates every 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 Decker 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.
Nellian Lake 7 mi · Division Lake 8 mi · Guyishton Lake 9 mi · Maxan Lake 10 mi · Burns Lake 10 mi · Sponge Lake 10 mi · Pinkut Lake 11 mi · Packrat Lake 11 mi · Nuphar Lake 11 mi · Ling Lake 11 mi · Anders Lake 12 mi · Bulkley Lake 12 mi
See how Decker 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.