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Fishing Blunder Lake: what the data says
310-acre lake near Ontario. The lake tops out around 20 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. What follows comes from the same scoring engine that paints the spots above.
Walleye fishing at Blunder Lake
Spring walleye on Blunder Lake hold shallow, usually 4 to 15 ft. They move out to 6 to 20 ft in summer and finish the year down in 6 to 20 ft. If you only fish one area, make it Break off the point: a drop-off around 9 ft that scores prime in fall. Best bite is the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 6 to 20 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 6 to 20 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 6 to 20 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Northern Pike fishing at Blunder Lake
Spring northern pike on Blunder Lake hold shallow, usually 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 ft that scores prime in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Yellow Perch fishing at Blunder Lake
Spring yellow perch on Blunder Lake hold shallow, usually 3 to 12 ft. They move out to 6 to 20 ft in summer and finish the year down in 6 to 20 ft. The spot to know is Deep basin, a deep basin in about 20 ft of water that rates prime for yellow perch in fall. 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 | 6 to 20 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 6 to 20 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 6 to 20 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Smallmouth Bass fishing at Blunder Lake
Spring smallmouth bass on Blunder Lake hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 6 to 20 ft, and winter fish settle into 6 to 20 ft. Break off the point is the standout, a drop-off at roughly 9 ft, rated prime for winter smallmouth bass. Best bite is early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 6 to 20 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 6 to 20 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 6 to 20 ft | midday | Blade bait, Hair jig |
Notable structure
- Deep basin: deep basin, around 20 ft
- Break off the point: drop-off, around 9 ft
- Main-lake point: point, around 5 ft
- Secondary point: point, around 2 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
Common questions
How deep is Blunder Lake?
Blunder Lake is about 20 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 Blunder Lake?
Anglers target smallmouth bass, walleye, northern pike, yellow perch on Blunder Lake.
Where is the best fishing spot on Blunder Lake?
Break off the point is the top-rated area: a drop-off in about 9 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Blunder Lake?
For walleye, 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
Batwing Lake · Highcliff Lake · Kekekuab Lake · Sandstone Lake · Lower Shebandowan Lake · Greenwater Lake
See how Blunder Lake stacks up: best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.