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Fishing Thomas Lake: what the data says
24-acre lake near Ontario. The lake tops out around 13 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.
Yellow Perch fishing at Thomas Lake
Spring yellow perch on Thomas Lake hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 4 to 13 ft, and winter fish settle into 4 to 13 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 4 to 13 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 4 to 13 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 4 to 13 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Pumpkinseed fishing at Thomas Lake
In spring, pumpkinseed run shallow here, mostly 1 to 8 ft. Summer pushes them deeper, 2 to 10 ft, and winter fish settle into 4 to 13 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring pumpkinseed. Best bite is the evening and early morning. Tie on a micro tube or a sponge spider (fly) and you're in the game.
| 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 13 ft | dusk & dawn | Micro jig + waxworm, Small spoon tipped |
| Winter | 4 to 13 ft | dawn | Tungsten ice jig + plastic, Tiny spoon |
Brown Bullhead fishing at Thomas Lake
In spring, brown bullhead run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 3 to 12 ft, and winter fish settle into 4 to 13 ft. Deep basin is the standout, a deep basin at roughly 11 ft, rated prime for winter brown bullhead. 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 | 4 to 13 ft | dusk | |
| Winter | 4 to 13 ft | midday |
Notable structure
- Deep basin: deep basin, around 11 ft
- Shoreline break: drop-off, around 6 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Thomas Lake?
Thomas Lake is about 13 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 Thomas Lake?
Anglers target yellow perch, pumpkinseed, brown bullhead on Thomas Lake.
Where is the best fishing spot on Thomas Lake?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Thomas Lake?
For yellow perch, 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
Maunsell Lake · Corry Lake · Mill Lake · Blackduck Lake · Long Lake · Rutherford Lake
See how Thomas Lake stacks up: best yellow perch lakes in Ontario · 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.