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Fishing Kilbrennan Lake: what the data says
59-acre lake near Montana. The lake tops out around 20 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What follows comes from the same scoring engine that paints the spots above.
Brook Trout fishing at Kilbrennan Lake
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. By summer they slide out to 6 to 20 ft, and by winter most fish are in 3 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 20 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 20 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Rainbow Trout fishing at Kilbrennan Lake
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Summer fish stay in 5 to 20 ft, and winter fish hold in 4 to 20 ft. The spot to know is Break off the point, a drop-off in about 11 ft of water that rates prime for rainbow trout in winter. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 5 to 20 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 6 to 20 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 4 to 20 ft | dawn | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 20 ft
- Break off the point: drop-off, around 11 ft
- Main-lake point: point, around 7 ft
- Secondary point: point, around 6 ft
- Back-bay flat: weed flat, around 3 ft
- Shallow bay flat: weed flat, around 2 ft
Common questions
How deep is Kilbrennan Lake?
Kilbrennan Lake is about 20 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Kilbrennan Lake?
Anglers target rainbow trout, brook trout on Kilbrennan Lake.
Where is the best fishing spot on Kilbrennan Lake?
Break off the point is the top-rated area: a drop-off in about 11 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.
When is the best time to fish Kilbrennan Lake?
For brook 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
Savage Lake · Loon Lake (Lincoln) · Spar Lake · Vinal Lake · Bull Lake (Lincoln) · Tetrault Lake
See how Kilbrennan Lake stacks up: best rainbow trout lakes in Montana · best brook trout lakes in Montana
Browse all Montana fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.