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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
44-acre lake in British Columbia. The lake tops out around 33 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
Thompson Lake maps at 43 acres behind 1.5 miles of shoreline. With a 1.6 development index there's bank structure worth casting at, in moderation. About 94% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 0.6 mi end to end and 0.2 mi across at its widest. It sits in Strathcona Regional District. Black Lake sits 3 mi east — the closest neighbouring chart.
Spring rainbow trout on Thompson Lake hold shallow, usually 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 7 to 33 ft. The chart's best answer is Deep basin — deep basin, 27 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
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 | Secondary point (2 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Deep basin (27 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 33 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Deep basin (27 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 33 ft chart-limited; documented 8 to 40 ft | dawn | Deep basin (27 ft) | Jigging spoon, Tube jig (white) |
Early season kokanee use the shallows, holding in 10 to 30 ft. Expect a summer slide to 10 to 33 ft, then a winter hold in 8 to 33 ft. Put Deep basin first on the milk run — a deep basin near 27 ft that grades prime for spring. In summer the feeding windows fall in early morning. Tie on a dodger + pink/orange squid on downrigger or a kokanee bug + corn and you're in the game.
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 (27 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 10 to 33 ft chart-limited; documented 30 to 70 ft | dawn | Deep basin (27 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 4 to 33 ft chart-limited; documented 5 to 40 ft | dawn | Deep basin (27 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 8 to 33 ft chart-limited; documented 20 to 80 ft | dawn | Deep basin (27 ft) | Small glow jig + corn or maggot, Tiny spoon |
Start shallow in spring: lake whitefish sit in 10 to 33 ft that time of year. They don't go far with the seasons — 10 to 33 ft covers summer, 10 to 33 ft covers winter. The spot to know is Deep basin, a deep basin in about 27 ft of water that rates prime for lake whitefish in summer. Warm-month bites cluster around early morning. Throw a blade bait vertical or a small jigging spoon until the fish tell you otherwise.
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 33 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (2 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 10 to 33 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (27 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (2 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 10 to 33 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (27 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
When the water first warms, burbot slide up into 10 to 33 ft. There's no big seasonal slide here — summer means 10 to 33 ft, winter 8 to 33 ft. If you only fish one area, make it Deep basin: a deep basin around 27 ft that scores prime in spring. In summer the feeding windows fall in after dark and midday. Keep a heavy jig + cut bait 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 | 10 to 33 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (27 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 10 to 33 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (27 ft) | Heavy jig + cut bait |
| Fall | 10 to 33 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (27 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 8 to 33 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (27 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
6 pieces of structure are mapped here — Deep basin, around 27 ft, is the deepest of them.
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 Thompson Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Thompson Lake is about 33 ft (10 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 rainbow trout, kokanee, lake whitefish, burbot on Thompson 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 27 ft of water that rates prime for kokanee in spring. 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 Thompson 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.
Black Lake 3 mi · Cassel Lake 4 mi · Roscoe Bay 4 mi · Ellis Lake 6 mi · Gunflint Lake 7 mi · Baile Lake 7 mi · Tom Lake 8 mi · Hague Lake 8 mi · Grace Harbour 9 mi · Village Bay Lake 15 mi · Main Lake 16 mi · Sliammon Lake 20 mi
See how Thompson 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: Strathcona Regional District fishing maps (85 charts). Browse all British Columbia fishing maps. 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.