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Fishing Windmill Lake: what the data says
52-acre lake near Grant County. The lake tops out around 50 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.
Rainbow Trout fishing at Windmill Lake
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. They move out to 8 to 30 ft in summer and finish the year down in 8 to 40 ft. If you only fish one area, make it Break off the point: a drop-off around 7 ft that scores prime in winter. 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 | 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 46 ft
- Back-bay flat: weed flat, around 16 ft
- Shallow bay flat: weed flat, around 15 ft
- Secondary point: point, around 14 ft
- Break off the point: drop-off, around 7 ft
- Main-lake point: point, around 5 ft
Common questions
How deep is Windmill Lake?
Windmill Lake is about 50 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 Windmill Lake?
Anglers target rainbow trout on Windmill Lake.
Where is the best fishing spot on Windmill Lake?
Break off the point is the top-rated area: a drop-off in about 7 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 Windmill Lake?
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
Canal Lake · Long Lake · Soda Lake · Upper Goose Lake · Lower Goose Lake · Moses Lake
See how Windmill Lake stacks up: best rainbow 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.