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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
9,670-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 499 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Here is how the season plays out for each species, straight from the data behind the map.
The drawn water covers 9,678 acres wrapped in 34.2 miles of bank. An index of 2.5 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. About 12% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Tip to tip the water measures near 14.3 mi with a 2.2-mi widest point. Cariboo Regional District claims this one. If the bite dies, Tsuniah Lake is 14 mi to the east.
Spring rainbow trout on Tatlayoko Lake hold shallow, usually 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 8 to 40 ft. Put Shoreline point first on the milk run — a point near 24 ft that grades prime for fall. The feeding windows run early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Rock reef 3 (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Rock reef 3 (6 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Shoreline point (24 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Rock reef 3 (6 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for bull trout tight to the bank in 10 to 40 ft. They move out to 30 to 90 ft in summer and finish the year down in 20 to 70 ft. If you only fish one area, make it Shoreline point: a point around 24 ft that scores prime in fall. Best bite is early morning and the evening. A trolled plug on downrigger or a heavy jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Shoreline point (24 ft) | Large jointed plug, 6" swimbait (kokanee/trout pattern) |
| Summer | 30 to 90 ft | dawn & dusk | Shoreline point (24 ft) | Trolled plug on downrigger, Heavy jigging spoon |
| Fall | 5 to 35 ft | dawn & dusk | Shoreline point (24 ft) | Large glide bait, Jointed plug |
| Winter | 20 to 70 ft | dawn | Shoreline point (24 ft) | Heavy spoon (slow lift), Large soft swimbait |
The spring pattern is a shallow one: dolly varden in 1 to 30 ft. As the season builds they drop to 2 to 40 ft, wintering in 8 to 45 ft. Top water on the chart: Shoreline point, a point in the 24 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small chrome spoon or a baitfish streamer gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 30 ft | dawn & midday | Shoreline point (24 ft) | Small silver spoon, Inline spinner |
| Summer | 2 to 40 ft | dawn & dusk | Shoreline point (24 ft) | Small chrome spoon, Baitfish streamer |
| Fall | 1 to 25 ft | dawn & dusk | Shoreline point (24 ft) | Small spinner, Egg or fry pattern |
| Winter | 8 to 45 ft | midday | Shoreline point (24 ft) | Small slow spoon, Weighted baitfish fly |
12 pieces of structure are mapped here — Deep basin, around 424 ft, is the deepest of them.
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 Tatlayoko Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tatlayoko Lake is about 499 ft (152 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, dolly varden on Tatlayoko Lake.
Shoreline point is the top-rated area: a point in about 24 ft of water that rates prime for dolly varden in spring. The map above holds the full rated-spot list for every 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 Tatlayoko 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.
Tsuniah Lake 14 mi · Cochin Lake 16 mi · Rosse Lake 19 mi · Bluff Lake 19 mi · Chilko Lake 20 mi · Murray Taylor Lake 21 mi · Horn Lake 21 mi · Sapeye Lake 21 mi · Brittany Lake 21 mi · Chaunigan Lake 23 mi · Konni Lake 23 mi · Middle Lake 23 mi
See how Tatlayoko 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: British Columbia Freshwater Atlas. 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.