Lake depth chart
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Rating depth structure for rainbow trout.
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128-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 33 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Here's the year, species by species, as the scoring engine sees it.
Traced from the shoreline, Poison Lakes runs 128 acres with 2.5 miles of edge. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. About 69% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 1 mi of water from one end to the other, 0.4 mi at the beam. You'll find it in Cariboo Regional District. For a second option, Poison Lakes lies 1 mi northwest.
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Summer pushes them deeper, 8 to 30 ft, and winter fish settle into 7 to 33 ft. Break off the point is the standout, a drop-off at roughly 15 ft, rated prime for winter rainbow trout. Time it for early morning and the evening. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (15 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 33 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 33 ft | dawn | Break off the point (15 ft) | Jigging spoon, Tube jig (white) |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 28 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 Poison Lakes specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Poison Lakes is about 33 ft (10 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 on Poison Lakes.
Break off the point is the top-rated area: a drop-off in about 15 ft of water that rates prime for rainbow trout in winter. Open the map above to see every rated 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 Poison Lakes 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.
Poison Lakes 1 mi · Lessard Lake 2 mi · Abuntlet Lake 3 mi · Anahim Lake 9 mi · Pelican Lake 10 mi · Hotnarko Lake 13 mi · Kappan Lake 15 mi · Nimpo Lake 22 mi · Eliguk Lake 23 mi · Stillwater Lake 24 mi · Basalt Lake 25 mi · Malaput Lake 27 mi
See how Poison Lakes 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 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.