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Fishing Marshall Lake: what the data says
289-acre lake near Pend Oreille County. The lake tops out around 90 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. Here is how the season plays out for each species, straight from the data behind the map.
Cutthroat Trout fishing at Marshall Lake
Start shallow in spring: cutthroat trout sit in 3 to 15 ft that time of year. Summer pushes them deeper, 10 to 35 ft, and winter fish settle into 10 to 40 ft. Best bite is early morning and the evening. 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 |
Notable structure
- Deep basin: deep basin, around 90 ft
- Shallow bay flat: weed flat, around 20 ft
- Back-bay flat: weed flat, around 17 ft
- Shallow feeding flat: feeding flat, around 9 ft
Common questions
How deep is Marshall Lake?
Marshall Lake is about 90 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 Marshall Lake?
Anglers target cutthroat trout on Marshall Lake.
When is the best time to fish Marshall 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
South Skookum Lake · North Skookum Lake · Diamond Lake · Davis Lake · Sacheen Lake · Eloika Lake
See how Marshall Lake stacks up: best cutthroat trout lakes in Washington
Browse all Washington fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.