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Fishing Grass Lake: what the data says
216-acre lake near Ontario. The lake tops out around 3 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. Below is the species-by-species picture, pulled from the same data the map uses.
Walleye fishing at Grass Lake
Start shallow in spring: walleye sit in 1 to 3 ft that time of year. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Break off the point is the standout, a drop-off at roughly 1 ft, rated prime for fall walleye. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 3 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 1 to 3 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 1 to 3 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 1 to 3 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Yellow Perch fishing at Grass Lake
Spring yellow perch on Grass Lake hold shallow, usually 1 to 3 ft. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Plan around early morning in the warm months. 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 | 1 to 3 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 1 to 3 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 1 to 3 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 1 to 3 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Northern Pike fishing at Grass Lake
In spring, northern pike run shallow here, mostly 1 to 3 ft. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. In summer the feeding windows fall in 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 | 1 to 3 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 1 to 3 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 1 to 3 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 1 to 3 ft | midday | Tip-ups, Large jigging spoon |
Largemouth Bass fishing at Grass Lake
In spring, largemouth bass run shallow here, mostly 1 to 3 ft. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring largemouth bass. In summer the feeding windows fall in early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 3 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 1 to 3 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 1 to 3 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 1 to 3 ft | midday | Blade bait, Jigging spoon |
Pumpkinseed fishing at Grass Lake
Start shallow in spring: pumpkinseed sit in 1 to 3 ft that time of year. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring pumpkinseed. Plan around the evening and early morning in the warm months. A micro tube or a sponge spider (fly) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 3 ft | midday & dusk | Micro jig under a float, Tiny beetle-spin |
| Summer | 1 to 3 ft | dusk & dawn | Micro tube, Sponge spider (fly) |
| Fall | 1 to 3 ft | dusk & dawn | Micro jig + waxworm, Small spoon tipped |
| Winter | 1 to 3 ft | dawn | Tungsten ice jig + plastic, Tiny spoon |
Common Carp fishing at Grass Lake
Start shallow in spring: common carp sit in 1 to 3 ft that time of year. Summer fish stay in 1 to 3 ft, and winter fish hold in 1 to 3 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for common carp in spring. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 3 ft | midday & dawn | |
| Summer | 1 to 3 ft | dawn & dusk | |
| Fall | 1 to 3 ft | midday | |
| Winter | 1 to 3 ft | midday |
Notable structure
- Main-lake point: point, around 3 ft
- Secondary point: point, around 3 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
- Deep basin: deep basin, around 3 ft
- Break off the point: drop-off, around 1 ft
Common questions
How deep is Grass Lake?
Grass Lake is about 3 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 Grass Lake?
Anglers target largemouth bass, walleye, northern pike, yellow perch, common carp, pumpkinseed on Grass Lake.
Where is the best fishing spot on Grass Lake?
Break off the point is the top-rated area: a drop-off in about 1 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 Grass 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
Buck Lake · Beaver Lake · Sparrow Lake · Lake Couchiching · Eastern L. · Long Lake
See how Grass Lake stacks up: best largemouth 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. How we build these maps. For fishing guidance only, never navigation.