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Fishing Marquardt Lake: what the data says
7-acre lake near Ontario. The lake tops out around 39 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.
Brook Trout fishing at Marquardt Lake
In spring, brook trout run shallow here, mostly 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. The spot to know is Break off the point, a drop-off in about 18 ft of water that rates prime for brook trout in summer. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Brown Bullhead fishing at Marquardt Lake
Start shallow in spring: brown bullhead sit in 2 to 8 ft that time of year. By summer they slide out to 3 to 12 ft, and by winter most fish are in 10 to 25 ft. If you only fish one area, make it Deep basin: a deep basin around 33 ft that scores good in winter. 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 33 ft
- Break off the point: drop-off, around 18 ft
- Main-lake point: point, around 10 ft
Common questions
How deep is Marquardt Lake?
Marquardt Lake is about 39 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 Marquardt Lake?
Anglers target brook trout, brown bullhead on Marquardt Lake.
Where is the best fishing spot on Marquardt Lake?
Break off the point is the top-rated area: a drop-off in about 18 ft of water that rates prime for brook trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Marquardt Lake?
For brook trout, 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
Raglan White Lake · Moccasin Lake · Leidtke Lake · Genricks Lake · Hardwood Lake · Stringers Lake
See how Marquardt Lake stacks up: best brook trout 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.