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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
661-acre lake in Peace River Regional District, British Columbia. The lake tops out around 167 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. The season-by-season read for each species follows, from the map's own numbers.
Drawn out, this is 661 acres of water rimmed by 9.1 miles of bank. With a shoreline index of 2.5, this water is all arms and coves — edge habitat well beyond its acreage. Littoral water — the productive band under ~15 ft — makes up 4% of this chart, as modeled. Call it 3.8 mi long by 1 mi wide at the broadest reach. The water lies in Peace River Regional District. Closest neighbour on DepthScout: Bicknell Lake, 3 mi southwest of here.
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. Spring rainbow trout concentrate at Shallow bay flat, a good-rated feeding flat around 6 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Shallow bay flat (6 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (42 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (75 ft) | Jigging spoon, Tube jig (white) |
Spring lake whitefish on Duncan Lake hold shallow, usually 15 to 45 ft. By summer they slide out to 40 to 90 ft, and by winter most fish are in 25 to 70 ft. The chart's best answer is Break off the point — drop-off, 75 ft, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Shallow bay flat (6 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Break off the point (75 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | open water | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Break off the point (75 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Duncan Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 142 ft down.
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 Duncan Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Duncan Lake is about 167 ft (51 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 Duncan Lake.
Break off the point is the top-rated area: a drop-off in about 75 ft of water that rates prime for lake whitefish in summer. Every other rated spot, per species and season, is on the map above.
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 Duncan 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.
Bicknell Lake 3 mi · Fredrikson Lake 13 mi · Thorne Lake 15 mi · Black Lake 15 mi · Budd Lake 15 mi · Toodoggone Lake 25 mi · Brothers Lake 25 mi · Kitchener Lake 25 mi · Trygve Lake 26 mi · Stalk Lakes 31 mi · Sustut Lake 36 mi · North Duti Lake 39 mi
See how Duncan Lake stacks up: best rainbow trout lakes in British Columbia · best lake whitefish lakes in British Columbia
More water nearby: Peace River Regional District fishing maps (100 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.