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Fishing Kootenai River: what the data says
The Kootenai below Libby Dam. a big, cold tailwater famous for trophy rainbow trout and mountain whitefish. The river tops out around 15 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.
Rainbow Trout fishing at Kootenai River
Start shallow in spring: rainbow trout sit in 4 to 15 ft that time of year. Summer fish stay in 4 to 15 ft, and winter fish hold in 3 to 15 ft. Current seam (mile 2.5) is the standout, a current seam at roughly 8 ft, rated prime for spring rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 4 to 15 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 4 to 15 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 3 to 15 ft | dawn | Jigging spoon, Tube jig (white) |
Lake Whitefish fishing at Kootenai River
Start shallow in spring: lake whitefish sit in 5 to 15 ft that time of year. Summer fish stay in 5 to 15 ft, and winter fish hold in 5 to 15 ft. Riffle & run (mile 0.6) is the standout, a rock pile at roughly 5 ft, rated prime for fall lake whitefish. Plan around early morning in the warm months. A blade bait vertical or a small jigging spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 15 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 5 to 15 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 4 to 15 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 5 to 15 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
Notable structure
- Libby Dam tailrace: dam tailrace, around 13 ft
- Outside-bend hole (mile 4.4): creek channel, around 11 ft
- Outside-bend hole (mile 9.9): creek channel, around 11 ft
- Outside-bend hole (mile 13.7): creek channel, around 11 ft
- Outside-bend hole (mile 15.5): creek channel, around 11 ft
- Outside-bend hole (mile 19.3): creek channel, around 11 ft
- Outside-bend hole (mile 21.1): creek channel, around 11 ft
- Outside-bend hole (mile 23.0): creek channel, around 11 ft
- Outside-bend hole (mile 24.9): creek channel, around 11 ft
- Tailout eddy (mile 28.3): eddy pocket, around 8 ft
- Current seam (mile 2.5): current seam, around 8 ft
- Current seam (mile 11.8): current seam, around 8 ft
- Riffle & run (mile 0.6): rock pile, around 5 ft
- Riffle & run (mile 6.2): rock pile, around 5 ft
Common questions
How deep is Kootenai River?
Kootenai River is about 15 ft 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 Kootenai River?
Anglers target rainbow trout, lake whitefish on Kootenai River.
Where is the best fishing spot on Kootenai River?
Current seam (mile 2.5) is the top-rated area: a current seam in about 8 ft of water that rates prime for rainbow trout in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Kootenai River?
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.
Nearby waters
Loon Lake (Lincoln) · Savage Lake · Bull Lake (Lincoln) · Kilbrennan Lake · Spar Lake · Vinal Lake
See how Kootenai River stacks up: best rainbow trout lakes in Montana · best lake whitefish lakes in Montana
Browse all Montana fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.