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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
704-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 171 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 704 acres of water rimmed by 8.8 miles of bank — 3 islands included. A development index of 2.4 means a maze of bays and points: far more casting targets than a round bowl of the same size. The shallow band under 15 ft claims about 6% of the surface on the model — that's where the groceries are. Figure 3.1 mi of water from one end to the other, 1 mi at the beam. You'll find it in Cariboo Regional District. The nearest mapped water is Sigutlat Lake, 9 mi to the northeast.
Spring puts burbot in skinny water — 25 to 70 ft is the zone. Warm water sends them out to 50 to 120 ft; cold water stacks them in 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 145 ft, rated prime for summer burbot. Plan around after dark and midday in the warm months. A heavy jig + cut bait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Deep basin (145 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Deep basin (145 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Deep basin (145 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Deep basin (145 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Spring puts rainbow trout in skinny water — 5 to 20 ft is the zone. As the season builds they drop to 8 to 30 ft, wintering in 8 to 40 ft. Spring rainbow trout concentrate at Shallow bay flat, a good-rated feeding flat around 6 ft. Warm-month bites cluster around early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| 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 (43 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | open water | Jigging spoon, Tube jig (white) |
Structure-wise the chart holds 5 features, led in depth by Deep basin at roughly 145 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 Iltasyuko Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Iltasyuko Lake is about 171 ft (52 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, rainbow trout on Iltasyuko Lake.
Deep basin is the top-rated area: a deep basin in about 145 ft of water that rates prime for burbot in summer. 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 Iltasyuko 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.
Sigutlat Lake 9 mi · Oppy Lake 13 mi · Tanya Lakes 16 mi · Tanya Lakes 17 mi · Nahlouza Lake 17 mi · Squiness Lake 18 mi · Tesla Lake 20 mi · Wahla Lake 22 mi · Mink Lake 22 mi · Pondosy Lake 29 mi · Gatcho Lake 30 mi · Majuba Lake 31 mi
See how Iltasyuko Lake stacks up: best rainbow trout lakes in British Columbia · best burbot lakes in British Columbia
More water nearby: Cariboo Regional District fishing maps (445 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.