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Fishing Flag Lake: what the data says
25-acre lake near Ontario. The lake tops out around 32 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. Below is the species-by-species picture, pulled from the same data the map uses.
Pumpkinseed fishing at Flag Lake
In spring, pumpkinseed run shallow here, mostly 1 to 8 ft. They move out to 2 to 10 ft in summer and finish the year down in 6 to 18 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. Best bite is the evening and early morning. Summer baits: a micro tube or a sponge spider (fly) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Tungsten ice jig + plastic, Tiny spoon |
Brown Bullhead fishing at Flag Lake
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. By summer they slide out to 3 to 12 ft, and by winter most fish are in 10 to 25 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for brown bullhead in spring. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | |
| Summer | 3 to 12 ft | night & dusk | |
| Fall | 5 to 15 ft | dusk | |
| Winter | 10 to 25 ft | midday |
Notable structure
- Deep basin: deep basin, around 27 ft
- Break off the point: drop-off, around 14 ft
- Main-lake point: point, around 8 ft
- Shallow bay flat: weed flat, around 4 ft
Common questions
How deep is Flag Lake?
Flag Lake is about 32 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 Flag Lake?
Anglers target pumpkinseed, brown bullhead on Flag Lake.
Where is the best fishing spot on Flag Lake?
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for pumpkinseed in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Flag Lake?
For pumpkinseed, the summer bite is best in the evening and 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
Bouck L. 21 · Cinder Lake · Rye Lake · Gunterman L. 1 · Gander Lake · Manydace L.
See how Flag Lake stacks up: best pumpkinseed lakes in Ontario · best brown bullhead lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.