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Fishing Prairie Grass Lake: what the data says
578-acre lake near Ontario. The lake tops out around 48 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.
Lake Trout fishing at Prairie Grass Lake
In spring, lake trout run shallow here, mostly 10 to 40 ft. They move out to 14 to 48 ft in summer and finish the year down in 12 to 48 ft. The spot to know is Deep basin, a deep basin in about 41 ft of water that rates prime for lake trout in summer. In summer the feeding windows fall in early morning. A white tube jig (deep) or a magnum spoon on downrigger covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 14 to 48 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 48 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 12 to 48 ft | dawn | White tube jig, Airplane jig |
Lake Whitefish fishing at Prairie Grass Lake
Spring lake whitefish on Prairie Grass Lake hold shallow, usually 15 to 45 ft. They move out to 14 to 48 ft in summer and finish the year down in 14 to 48 ft. The spot to know is Deep basin, a deep basin in about 41 ft of water that rates prime for lake whitefish in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 14 to 48 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 14 to 48 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
Cisco (Lake Herring) fishing at Prairie Grass Lake
Spring cisco (lake herring) on Prairie Grass Lake hold shallow, usually 10 to 40 ft. They move out to 14 to 48 ft in summer and finish the year down in 14 to 48 ft. If you only fish one area, make it Deep basin: a deep basin around 41 ft that scores prime in summer. Best bite is early morning. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 14 to 48 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 14 to 48 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Notable structure
- Deep basin: deep basin, around 41 ft
- Break off the point: drop-off, around 22 ft
- Main-lake point: point, around 12 ft
- Secondary point: point, around 12 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Prairie Grass Lake?
Prairie Grass Lake is about 48 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 Prairie Grass Lake?
Anglers target lake trout, lake whitefish, cisco (lake herring) on Prairie Grass Lake.
Where is the best fishing spot on Prairie Grass Lake?
Deep basin is the top-rated area: a deep basin in about 41 ft of water that rates prime for lake trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Prairie Grass Lake?
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Nushatogaini Lake · Clove Lake · Megisan Lake · Torrance Lake · Hail Lake · Firetrail Lake
See how Prairie Grass Lake stacks up: best lake trout lakes in Ontario · best lake whitefish lakes in Ontario · best cisco (lake herring) lakes in Ontario
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