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Fishing Guilfoyle Lake 17: what the data says
28-acre lake near Ontario. The lake tops out around 30 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. Here is how the season plays out for each species, straight from the data behind the map.
Walleye fishing at Guilfoyle Lake 17
In spring, walleye run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 9 to 30 ft, and winter fish settle into 9 to 30 ft. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for fall walleye. 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 | 9 to 30 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 9 to 30 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 9 to 30 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Northern Pike fishing at Guilfoyle Lake 17
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. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for fall northern pike. 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 Guilfoyle Lake 17
Spring yellow perch on Guilfoyle Lake 17 hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 9 to 30 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated prime for fall yellow perch. In summer the feeding windows fall in early morning. 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 | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 9 to 30 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Smallmouth Bass fishing at Guilfoyle Lake 17
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 9 to 30 ft. Break off the point is the standout, a drop-off at roughly 13 ft, rated prime for winter smallmouth bass. In summer the feeding windows fall in 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 | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 9 to 30 ft | midday | Blade bait, Hair jig |
Notable structure
- Deep basin: deep basin, around 30 ft
- Break off the point: drop-off, around 13 ft
- Main-lake point: point, around 5 ft
- Secondary point: point, around 3 ft
Common questions
How deep is Guilfoyle Lake 17?
Guilfoyle Lake 17 is about 30 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 Guilfoyle Lake 17?
Anglers target smallmouth bass, walleye, northern pike, yellow perch on Guilfoyle Lake 17.
Where is the best fishing spot on Guilfoyle Lake 17?
Break off the point is the top-rated area: a drop-off in about 13 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 Guilfoyle Lake 17?
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
Guilfoyle Lake 23 · Guilfoyle Lake 11 · Guilfoyle Lake 27 · Five Pines Lake · Guilfoyle Lake · Sensenbrenner Lake
See how Guilfoyle Lake 17 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.