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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
366-acre lake in Stikine Region, British Columbia. The lake tops out around 66 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:
South Duti Lake maps at 366 acres behind 5 miles of shoreline. A middling shoreline index (1.9) gives it some bays to work without being a maze. 19% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Figure 1.7 mi of water from one end to the other, 0.7 mi at the beam. Stikine Region claims this one. If the bite dies, North Duti Lake is 2 mi to the northeast.
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 30 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 (17 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (30 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (17 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (30 ft) | Jigging spoon, Tube jig (white) |
6 pieces of structure are mapped here — Deep basin, around 56 ft, is the deepest of them.
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 South Duti Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
South Duti Lake is about 66 ft (20 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 on South Duti Lake.
Break off the point is the top-rated area: a drop-off in about 30 ft of water that rates prime for rainbow trout in winter. The interactive chart above rates every spot for each 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 South Duti 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.
North Duti Lake 2 mi · Hotlesklwa Lake 6 mi · Laslui Lake 8 mi · Stalk Lakes 11 mi · Tuaton Lake 11 mi · Happy Lake 13 mi · Brothers Lake 15 mi · Kitchener Lake 18 mi · Trygve Lake 21 mi · Klahowya Lake 23 mi · Buckinghorse Lake 28 mi · Black Lake 28 mi
See how South Duti Lake stacks up: best rainbow trout lakes in British Columbia
More water nearby: Stikine Region fishing maps (88 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.