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Fishing Marion Lake: what the data says
68-acre lake near Montana. The lake tops out around 150 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. Below is the species-by-species picture, pulled from the same data the map uses.
Cutthroat Trout fishing at Marion Lake
Spring cutthroat trout on Marion Lake hold shallow, usually 3 to 15 ft. They move out to 10 to 35 ft in summer and finish the year down in 10 to 40 ft. The spot to know is Break off the point, a drop-off in about 139 ft of water that rates good for cutthroat trout in summer. Plan around early morning and the evening in the warm months. Summer baits: a trolled spoon (small) or a inline spinner gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Small jigging spoon, Marabou jig |
Rainbow Trout fishing at Marion 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. Break off the point is the standout, a drop-off at roughly 139 ft, rated good for winter rainbow trout. Best bite is 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 | 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) |
Notable structure
- Deep basin: deep basin, around 140 ft
- Break off the point: drop-off, around 139 ft
- Main-lake point: point, around 56 ft
- Shallow bay flat: weed flat, around 12 ft
- Back-bay flat: weed flat, around 9 ft
Common questions
How deep is Marion Lake?
Marion Lake is about 150 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 Marion Lake?
Anglers target rainbow trout, cutthroat trout on Marion Lake.
Where is the best fishing spot on Marion Lake?
Break off the point is the top-rated area: a drop-off in about 139 ft of water that rates good for cutthroat trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Marion Lake?
For cutthroat 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
Dickey Lake (Flathead) · West Tranquil Basin Lake · East Tranquil Basin Lake · Handkerchief Lake · Margaret Lake (Flathead) · Skiumah Lake
See how Marion Lake stacks up: best rainbow trout lakes in Montana · best cutthroat 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.