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Fishing Longline Lake: what the data says
66-acre lake near Ontario. The lake tops out around 56 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.
Lake Trout fishing at Longline Lake
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Summer pushes them deeper, 17 to 56 ft, and winter fish settle into 14 to 56 ft. The spot to know is Deep basin, a deep basin in about 48 ft of water that rates prime for lake trout in summer. In summer the feeding windows fall in early morning. A white tube jig (deep) or a magnum spoon on downrigger covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 17 to 56 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 14 to 56 ft | dawn | White tube jig, Airplane jig |
Splake fishing at Longline Lake
Start shallow in spring: splake sit in 5 to 25 ft that time of year. Summer pushes them deeper, 17 to 56 ft, and winter fish settle into 10 to 45 ft. Break off the point is the standout, a drop-off at roughly 25 ft, rated prime for summer splake. Plan around early morning and the evening in the warm months. A trolled spoon at the thermocline or a white tube jig (deep) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Small casting spoon (gold/orange), Inline spinner |
| Summer | 17 to 56 ft | dawn & dusk | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Jigging spoon tipped with minnow head, Small white tube |
Yellow Perch fishing at Longline Lake
Spring yellow perch on Longline Lake hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. Plan around early morning in the warm months. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| 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) |
Smallmouth Bass fishing at Longline Lake
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. By summer they slide out to 10 to 30 ft, and by winter most fish are in 20 to 45 ft. Main-lake point is the standout, a point at roughly 14 ft, rated prime for fall 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 | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Blade bait, Hair jig |
Rock Bass fishing at Longline Lake
Spring rock bass on Longline Lake hold shallow, usually 2 to 10 ft. By summer they slide out to 5 to 20 ft, and by winter most fish are in 12 to 30 ft. Main-lake point is the standout, a point at roughly 14 ft, rated prime for summer rock bass. Plan around the evening in the warm months. A ned rig (small) or a marabou jig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | 1/16 oz jig + grub, Small inline spinner |
| Summer | 5 to 20 ft | dusk | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Small tube jig, Inline spinner |
| Winter | 12 to 30 ft | midday | Tungsten jig + plastic, Small spoon + spike |
Pumpkinseed fishing at Longline 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 6 to 18 ft. Shallow bay flat is the standout, a weed flat at roughly 6 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 14 ft | dusk & dawn | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Tungsten ice jig + plastic, Tiny spoon |
Longline Lake also holds burbot (17 to 56 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Deep basin: deep basin, around 48 ft
- Break off the point: drop-off, around 25 ft
- Main-lake point: point, around 14 ft
- Secondary point: point, around 14 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Longline Lake?
Longline Lake is about 56 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 Longline Lake?
Anglers target smallmouth bass, yellow perch, lake trout, burbot, rock bass, splake, pumpkinseed on Longline Lake.
Where is the best fishing spot on Longline Lake?
Deep basin is the top-rated area: a deep basin in about 48 ft of water that rates prime for lake trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Longline Lake?
For lake trout, 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
Roundabout Lake · Tom Lake · Wolfkin Lake · Mink Lake · Lake of Bays · Chub Lake
See how Longline Lake stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best lake trout lakes in Ontario · best burbot lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.