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Fishing Trimble Lake: what the data says
766-acre lake near British Columbia. The lake tops out around 112 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. What follows comes from the same scoring engine that paints the spots above.
Arctic Grayling fishing at Trimble Lake
In spring, arctic grayling run shallow here, mostly 2 to 10 ft. By summer they slide out to 3 to 15 ft, and by winter most fish are in 8 to 25 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores good in spring. In summer the feeding windows fall in the evening and early morning. A dry fly (parachute adams, elk hair caddis) or a small inline spinner covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Tungsten jig + waxworm, Small jigging spoon (gold) |
Rainbow Trout fishing at Trimble Lake
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. By summer they slide out to 8 to 30 ft, and by winter most fish are in 8 to 40 ft. If you only fish one area, make it Main-lake point: a point around 28 ft that scores prime in fall. In summer the feeding windows fall in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Jigging spoon, Tube jig (white) |
Lake Whitefish fishing at Trimble Lake
Spring lake whitefish on Trimble Lake hold shallow, usually 15 to 45 ft. By summer they slide out to 40 to 90 ft, and by winter most fish are in 25 to 70 ft. The spot to know is Deep basin, a deep basin in about 95 ft of water that rates prime for lake whitefish in summer. In summer the feeding windows fall in early morning. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
Notable structure
- Deep basin: deep basin, around 95 ft
- Break off the point: drop-off, around 50 ft
- Main-lake point: point, around 28 ft
- Secondary point: point, around 28 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Trimble Lake?
Trimble Lake is about 112 ft (34 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.
What fish are in Trimble Lake?
Anglers target rainbow trout, lake whitefish, arctic grayling on Trimble Lake.
Where is the best fishing spot on Trimble Lake?
Deep basin is the top-rated area: a deep basin in about 95 ft of water that rates prime for lake whitefish in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Trimble Lake?
For arctic grayling, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Redfern Lake · Fairy Lake · Marion Lake · Kluachesi Lake · Lifeline Lake · Tobin Lake
See how Trimble Lake stacks up: best rainbow trout lakes in British Columbia · best lake whitefish lakes in British Columbia · best arctic grayling lakes in British Columbia
Browse all British Columbia fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.