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Rating depth structure for pumpkinseed.
Shared by DepthScout anglers. Exact spots stay private, always.
59-acre lake in Renfrew County, Ontario. The lake tops out around 32 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Grants Lake runs 59 acres with 1.6 miles of edge. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. The shallow band under 15 ft claims about 47% of the surface on the model — that's where the groceries are. The basin spans about 0.5 mi end to end and 0.4 mi across at its widest. The water lies in Renfrew County. The nearest mapped water is Chateau Lake, 1 mi to the east.
Spring pumpkinseed on Grants Lake hold shallow, usually 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 6 to 18 ft. The chart's best answer is Shallow bay flat — weed flat, 4 ft, prime for spring. Prime time lands in the evening and early morning. The summer box starts with a micro tube or a sponge spider (fly).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (4 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Shallow bay flat (4 ft) | Tungsten ice jig + plastic, Tiny spoon |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 27 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Grants Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Grants Lake is about 32 ft (10 m) deep 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.
Anglers target pumpkinseed on Grants Lake.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for pumpkinseed in spring. Scroll up to the map for the complete spot list by species and season.
For pumpkinseed, 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.
Fishing on Grants Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Chateau Lake 1 mi · North Rouge Lake 1 mi · Puffball Lake 3 mi · Oval Lake 3 mi · Tigger Lake 3 mi · Pooh Lake 4 mi · Little Lake 4 mi · Christopher Robin Lake 4 mi · Piglet Lake 5 mi · Eeyore Lake 5 mi · Marys Lake 5 mi · Big Bissett Lake 5 mi
See how Grants Lake stacks up: best pumpkinseed lakes in Ontario
More water nearby: Renfrew County fishing maps (298 charts). Browse all Ontario fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.