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Fishing Mullen Lake: what the data says
353-acre lake near Ontario. The lake tops out around 43 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.
Cisco (Lake Herring) fishing at Mullen Lake
In spring, cisco (lake herring) run shallow here, mostly 10 to 40 ft. Summer pushes them deeper, 13 to 43 ft, and winter fish settle into 13 to 43 ft. The spot to know is Deep basin, a deep basin in about 37 ft of water that rates prime for cisco (lake herring) in spring. Plan around early morning in the warm months. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 13 to 43 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 13 to 43 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Yellow Perch fishing at Mullen Lake
Spring yellow perch on Mullen Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 5 ft that scores prime in spring. Best bite is early morning. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Northern Pike fishing at Mullen Lake
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 5 ft, rated prime for spring northern pike. Best bite is early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| 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 |
Notable structure
- Deep basin: deep basin, around 37 ft
- Break off the point: drop-off, around 19 ft
- Main-lake point: point, around 11 ft
- Secondary point: point, around 11 ft
- Shallow bay flat: weed flat, around 5 ft
- Back-bay flat: weed flat, around 5 ft
Common questions
How deep is Mullen Lake?
Mullen Lake is about 43 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 Mullen Lake?
Anglers target northern pike, yellow perch, cisco (lake herring) on Mullen Lake.
Where is the best fishing spot on Mullen Lake?
Deep basin is the top-rated area: a deep basin in about 37 ft of water that rates prime for cisco (lake herring) in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Mullen Lake?
For cisco (lake herring), 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
Kirk Lake · Hidden Lake · Pape Lake · Supee Lake · Legros Lake · Deception Lake
See how Mullen Lake stacks up: best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best cisco (lake herring) lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.