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Fishing Yapp Lake: what the data says
482-acre lake near Ontario. The lake tops out around 15 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 Yapp Lake
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Summer fish stay in 5 to 15 ft, and winter fish hold in 5 to 15 ft. Deep basin is the standout, a deep basin at roughly 15 ft, rated prime for winter 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 | 5 to 15 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 5 to 15 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 5 to 15 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Northern Pike fishing at Yapp Lake
Spring northern pike on Yapp Lake hold shallow, usually 2 to 8 ft. By summer they slide out to 5 to 15 ft, and by winter most fish are in 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. 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 | 5 to 15 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 5 to 15 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 Yapp Lake
Spring yellow perch on Yapp Lake hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 5 to 15 ft, and winter fish settle into 5 to 15 ft. The spot to know is Back-bay flat, a weed flat in about 3 ft of water that rates prime for yellow perch 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 | 5 to 15 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 5 to 15 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 5 to 15 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Smallmouth Bass fishing at Yapp Lake
Spring smallmouth bass on Yapp Lake hold shallow, usually 3 to 12 ft. They move out to 5 to 15 ft in summer and finish the year down in 5 to 15 ft. The spot to know is Main-lake point, a point in about 3 ft of water that rates prime for smallmouth bass in spring. Plan around early morning and the evening in the warm months. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 5 to 15 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 5 to 15 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 5 to 15 ft | midday | Blade bait, Hair jig |
Notable structure
- Deep basin: deep basin, around 15 ft
- Main-lake point: point, around 3 ft
- Back-bay flat: weed flat, around 3 ft
- Secondary point: point, around 2 ft
- Shallow bay flat: weed flat, around 2 ft
- Break off the point: drop-off, around 2 ft
Common questions
How deep is Yapp Lake?
Yapp Lake is about 15 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 Yapp Lake?
Anglers target smallmouth bass, walleye, northern pike, yellow perch on Yapp Lake.
Where is the best fishing spot on Yapp Lake?
Deep basin is the top-rated area: a deep basin in about 15 ft of water that rates prime for walleye in winter. Open the map above to see every rated spot for each species and season.
When is the best time to fish Yapp 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
Jeanette Lake · Polzin Lake · Sharp Lake · Papaonga Lake · Wesley Lake · Lightning Lake
See how Yapp 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.