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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
340-acre lake in Fraser-Fort George Regional District, British Columbia. The lake tops out around 60 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 340 acres wrapped in 7.4 miles of bank, broken up by 2 islands. The 2.9 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 41% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 2.1 mi of water from one end to the other, 0.6 mi at the beam. Fraser-Fort George Regional District claims this one. If the bite dies, Slim Lake is 3 mi to the northeast.
Come spring, look for kokanee tight to the bank in 10 to 30 ft. They move out to 18 to 60 ft in summer and finish the year down in 15 to 60 ft. If you only fish one area, make it Deep basin: a deep basin around 51 ft that scores prime in summer. Best bite is early morning. A dodger + pink/orange squid on downrigger or a kokanee bug + corn is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Break off the point (27 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 18 to 60 ft | dawn | Deep basin (51 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | Break off the point (27 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 15 to 60 ft | dawn | Deep basin (51 ft) | Small glow jig + corn or maggot, Tiny spoon |
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 27 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 (15 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (27 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (15 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (27 ft) | Jigging spoon, Tube jig (white) |
In spring, lake whitefish run shallow here, mostly 15 to 45 ft. Midsummer fish sit out in 18 to 60 ft before dropping to 18 to 60 ft for winter. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 51 ft. Fish it in early morning and you'll meet the bite. You won't need more than a blade bait vertical or a small jigging spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (27 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 18 to 60 ft | dawn | Deep basin (51 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (27 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 18 to 60 ft | midday & dawn | Deep basin (51 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The chart marks 6 structure features on Tumuch Lake; the deepest is Deep basin at about 51 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 Tumuch Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Tumuch Lake is about 60 ft (18 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 kokanee, rainbow trout, lake whitefish on Tumuch Lake.
Deep basin is the top-rated area: a deep basin in about 51 ft of water that rates prime for kokanee in summer. Open the map above to see every rated spot for each species and season.
For kokanee, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Tumuch 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.
Slim Lake 3 mi · Papoose Lake 5 mi · Pinkerton Lake 7 mi · Spruce Lakes 8 mi · Spruce Lakes 8 mi · Haggen Lakes 15 mi · Haggen Lakes 15 mi · Haggen Lakes 16 mi · Haggen Lakes 16 mi · Wendle Lake 17 mi · Narrow Lake 21 mi · Purden Lake 22 mi
See how Tumuch Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best lake whitefish lakes in British Columbia
More water nearby: Fraser-Fort George Regional District fishing maps (188 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.