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Fishing Thompson Lake: what the data says
22-acre lake near Ontario. The lake tops out around 12 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.
Northern Pike fishing at Thompson Lake
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 4 to 12 ft, and winter fish settle into 4 to 12 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 4 to 12 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 4 to 12 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 4 to 12 ft | midday | Tip-ups, Large jigging spoon |
Smallmouth Bass fishing at Thompson Lake
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. Summer fish stay in 4 to 12 ft, and winter fish hold in 4 to 12 ft. Shoreline break is the standout, a drop-off at roughly 5 ft, rated prime for winter smallmouth bass. Best bite is early morning and the evening. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 4 to 12 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 4 to 12 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 4 to 12 ft | midday | Blade bait, Hair jig |
Largemouth Bass fishing at Thompson Lake
Spring largemouth bass on Thompson Lake hold shallow, usually 2 to 10 ft. By summer they slide out to 4 to 12 ft, and by winter most fish are in 4 to 12 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. Best bite is early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 4 to 12 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 3 to 12 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 4 to 12 ft | midday | Blade bait, Jigging spoon |
Brown Bullhead fishing at Thompson 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 12 ft. Deep basin is the standout, a deep basin at roughly 10 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 12 ft | dusk | |
| Winter | 4 to 12 ft | midday |
Notable structure
- Deep basin: deep basin, around 10 ft
- Shoreline break: drop-off, around 5 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Thompson Lake?
Thompson Lake is about 12 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 Thompson Lake?
Anglers target largemouth bass, smallmouth bass, northern pike, brown bullhead on Thompson Lake.
Where is the best fishing spot on Thompson Lake?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for northern pike in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Thompson Lake?
For northern pike, 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
Henshaw Lake · Silver Lake · Butterfly Lake · Ada Lake · Brandy Lake · Lake Rosseau
See how Thompson Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best northern pike 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.