Lake depth chart
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35-acre lake in British Columbia. The lake tops out around 36 ft. This chart interpolates between a real shoreline and a known maximum depth. It will point you at likely water, but it is not a navigation product. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 35 acres, worked by 1.1 miles of shoreline. The basin is a simple one (shoreline index 1.4) — close to a bowl, so the structure on the chart matters more than the bank. The shallow band under 15 ft claims about 35% of the surface on the model — that's where the groceries are. Call it 0.4 mi long by 0.2 mi wide at the broadest reach. Thompson-Nicola Regional District claims this one. Deadman Lake sits 4 mi west — the closest neighbouring chart.
When the water first warms, rainbow trout slide up into 5 to 20 ft. Summer is an 8 to 30 ft game here, winter a 7 to 36 ft one. Start at Break off the point. It's a drop-off holding about 16 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (9 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (16 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (9 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 36 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (16 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for kokanee tight to the bank in 10 to 30 ft. They move out to 11 to 36 ft in summer and finish the year down in 9 to 36 ft. If you only fish one area, make it Deep basin: a deep basin around 31 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Deep basin (31 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 11 to 36 ft chart-limited; documented 30 to 70 ft | dawn | Deep basin (31 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 36 ft chart-limited; documented 5 to 40 ft | dawn | Deep basin (31 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 9 to 36 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (31 ft) | Small glow jig + corn or maggot, Tiny spoon |
In spring, lake whitefish run shallow here, mostly 11 to 36 ft. Summer keeps them at 11 to 36 ft, and they winter in 11 to 36 ft. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 31 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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 11 to 36 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (16 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 11 to 36 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (31 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (16 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 11 to 36 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (31 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring burbot on Semlin Lake hold shallow, usually 11 to 36 ft. Depth-wise the year is flat: 11 to 36 ft in summer, 9 to 36 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 31 ft that grades prime for spring. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 11 to 36 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (31 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 11 to 36 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (31 ft) | Heavy jig + cut bait |
| Fall | 11 to 36 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (31 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 9 to 36 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (31 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 31 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 Semlin Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Semlin Lake is about 36 ft (11 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, kokanee, lake whitefish, burbot on Semlin Lake. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Deep basin is the top-rated area: a deep basin in about 31 ft of water that rates prime for kokanee in summer. Scroll up to the map for the complete spot list by 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 Semlin 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.
Deadman Lake 4 mi · Enright Lake 4 mi · Skookum Lake 4 mi · Vidette Lake 4 mi · Snohoosh Lake 5 mi · Lastcourse Lake 5 mi · Bog Lake 6 mi · Scot Lake 7 mi · Hammer Lake 8 mi · Mowich Lake 8 mi · Little Scot Lake 8 mi · Heller Lake 10 mi
See how Semlin Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best lake whitefish lakes in British Columbia · best burbot lakes in British Columbia
More water nearby: Thompson-Nicola Regional District fishing maps (322 charts). Browse all British Columbia fishing maps. 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.