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Rating depth structure for rainbow trout.
Shared by DepthScout anglers. Exact spots stay private, always.
238-acre lake in Cowichan Valley Regional District, British Columbia. The lake tops out around 25 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 238 acres, worked by 2.8 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. About 88% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 1.1 mi long by 0.5 mi wide at the broadest reach. Cowichan Valley Regional District claims this one. If the bite dies, Quamichan Lake is 2 mi to the east.
Early season brook trout use the shallows, holding in 2 to 15 ft. Summer is an 8 to 25 ft game here, winter a 3 to 20 ft one. The chart's best answer is Deep basin — deep basin, 20 ft, prime for summer. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 8 to 25 ft | dawn & dusk | Deep basin (20 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Come spring, look for brown bullhead tight to the bank in 2 to 8 ft. They move out to 3 to 12 ft in summer and finish the year down in 10 to 25 ft. If you only fish one area, make it Deep basin: a deep basin around 20 ft that scores prime in winter. Best bite is after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 5 to 15 ft | dusk | open water | |
| Winter | 10 to 25 ft | midday | Deep basin (20 ft) |
In spring, brown trout run shallow here, mostly 3 to 25 ft. Summer keeps them at 8 to 25 ft, and they winter in 4 to 25 ft. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for summer brown trout. Time it for after dark and early morning. You won't need more than a spoon at the thermocline or a deep stickbait (night) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (2 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 8 to 25 ft | night & dawn | Break off the point (13 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 4 to 25 ft | dusk & dawn | Main-lake point (2 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 4 to 25 ft | dawn | Break off the point (13 ft) | Jigging spoon, Small stickbait (slow) |
In spring, cutthroat trout run shallow here, mostly 3 to 15 ft. Summer pushes them deeper, 7 to 25 ft, and winter fish settle into 6 to 25 ft. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for summer cutthroat trout. Time it for early morning and the evening. You won't need more than a trolled spoon (small) or an inline spinner most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 7 to 25 ft | dawn & dusk | Break off the point (13 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (2 ft) | Casting spoon, Inline spinner |
| Winter | 6 to 25 ft | dawn | Break off the point (13 ft) | Small jigging spoon, Marabou jig |
Start shallow in spring: pumpkinseed sit in 1 to 8 ft that time of year. Warm water sends them out to 2 to 10 ft; cold water stacks them in 6 to 18 ft. Top water on the chart: Shallow bay flat, a weed flat in the 1 ft range, prime in spring. Fish it in the evening and early morning and you'll meet the bite. Throw a micro tube or a sponge spider (fly) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (1 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Deep basin (20 ft) | Tungsten ice jig + plastic, Tiny spoon |
Spring rainbow trout on Somenos Lake hold shallow, usually 5 to 20 ft. They move out to 7 to 25 ft in summer and finish the year down in 5 to 25 ft. Put Break off the point first on the milk run — a drop-off near 13 ft that grades prime for winter. 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 | Break off the point (13 ft) | Inline spinner (silver), Small spoon |
| Summer | 7 to 25 ft | dawn & dusk | Break off the point (13 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 7 to 25 ft | dawn & dusk | Break off the point (13 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 5 to 25 ft | dawn | Break off the point (13 ft) | Jigging spoon, Tube jig (white) |
Somenos Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 20 ft down.
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 Somenos Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Somenos Lake is about 25 ft (8 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target brook trout, brown bullhead, brown trout, cutthroat trout, pumpkinseed, rainbow trout on Somenos Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for brown bullhead in winter. The interactive chart above rates every spot for each species and season.
For brook 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 Somenos 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.
Quamichan Lake 2 mi · Maple Bay 5 mi · Keating Lake 6 mi · Dougan Lake 7 mi · Lake Maxwell 7 mi · Fuller Lake 7 mi · Lois Lake 8 mi · Chemainus Lake 8 mi · Roberts Lake 9 mi · Holyoak Lake 9 mi · St. Mary Lake 9 mi · Wild Deer Lake 10 mi
See how Somenos Lake stacks up: best rainbow trout lakes in British Columbia · best brown trout lakes in British Columbia · best brook trout lakes in British Columbia · best cutthroat trout lakes in British Columbia
More water nearby: Cowichan Valley Regional District fishing maps (30 charts). Browse all British Columbia fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. 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.