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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
2,668-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 130 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 2,523 acres, worked by 19.8 miles of shoreline, with a single island in the mix. A development index of 2.8 means a maze of bays and points: far more casting targets than a round bowl of the same size. About 7% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 8 mi long by 1.9 mi wide at the broadest reach. It sits in Cariboo Regional District. If the bite dies, Chaunigan Lake is 9 mi to the east.
When the water first warms, rainbow trout slide up into 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 8 to 40 ft. If you only fish one area, make it Shoreline point: a point around 13 ft that scores prime in spring. In summer the feeding windows fall in 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 | Shoreline point (13 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Shoreline point (13 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (33 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Sharp break (44 ft) | Jigging spoon, Tube jig (white) |
Early season bull trout use the shallows, holding in 10 to 40 ft. Expect a summer slide to 30 to 90 ft, then a winter hold in 20 to 70 ft. Put Break off the point first on the milk run — a drop-off near 59 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a trolled plug on downrigger or a heavy jigging spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (33 ft) | Large jointed plug, 6" swimbait (kokanee/trout pattern) |
| Summer | 30 to 90 ft | dawn & dusk | Break off the point (59 ft) | Trolled plug on downrigger, Heavy jigging spoon |
| Fall | 5 to 35 ft | dawn & dusk | Main-lake point (33 ft) | Large glide bait, Jointed plug |
| Winter | 20 to 70 ft | dawn | Break off the point (59 ft) | Heavy spoon (slow lift), Large soft swimbait |
Tsuniah Lake carries 11 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 111 ft down.
Access data: British Columbia Recreation Sites and Trails - Recreation Sites Subset; Government of British Columbia - Dual-Verified Provincial Crown Land Shoreline; Government of British Columbia - Dual-Verified Provincial Crown Land Shoreline. Confirm conditions and fees locally before you launch.
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 Tsuniah Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tsuniah Lake is about 130 ft (40 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, bull trout on Tsuniah Lake.
Break off the point is the top-rated area: a drop-off in about 59 ft of water that rates prime for bull 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 Tsuniah 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.
Chaunigan Lake 9 mi · Murray Taylor Lake 10 mi · Brittany Lake 10 mi · Konni Lake 11 mi · Elkin Lake 12 mi · Vedan Lake 12 mi · Rosse Lake 13 mi · Tatlayoko Lake 14 mi · Chilko Lake 15 mi · Big Lake 16 mi · Vick Lake 19 mi · Cochin Lake 21 mi
See how Tsuniah Lake stacks up: best rainbow trout lakes in British Columbia
More water nearby: Cariboo Regional District fishing maps (445 charts). Browse all British Columbia fishing maps. See every water on DepthScout. Shoreline: OpenStreetMap contributors (ODbL). This is a shoreline guide. Modeled depth contours have been retired. 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.