Sign inSign up free Sign inSign up free Sign inSign up freeShared by DepthScout anglers. Exact spots stay private, always.
156-acre lake in Waterloo Regional Municipality, Ontario. The lake tops out around 10 ft. The depth data here comes from the Ontario MNRF survey of 2016 (an MNRF lake survey). Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Grand River section runs 157 acres with 13.8 miles of edge, broken up by 12 islands. A development index of 7.9 means a maze of bays and points: far more casting targets than a round bowl of the same size. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Figure 4 mi of water from one end to the other, 1.5 mi at the beam. You'll find it in Waterloo Regional Municipality. For a second option, Puslinch Lake lies 8 mi east.
Start shallow in spring: brook trout sit in 1 to 10 ft that time of year. They don't go far with the seasons — 3 to 10 ft covers summer, 2 to 10 ft covers winter. The spot to know is Deep basin, a deep basin in about 2 ft of water that rates prime for brook trout in winter. Warm-month bites cluster around early morning and the evening. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 3 to 10 ft | dawn & dusk | Deep basin (2 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 1 to 10 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 10 ft | dawn | Deep basin (2 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: rainbow trout in 3 to 10 ft. The depth story barely changes: 3 to 10 ft through summer, 2 to 10 ft in winter. Top water on the chart: Break off the point, a drop-off in the 2 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Inline spinner (silver), Small spoon |
| Summer | 3 to 10 ft | dawn & dusk | Break off the point (2 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 3 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 10 ft | dawn | Break off the point (2 ft) | Jigging spoon, Tube jig (white) |
Early season brown trout use the shallows, holding in 1 to 10 ft. Even in summer they hold at 3 to 10 ft; winter keeps them in 1 to 10 ft. Put Break off the point first on the milk run — a drop-off near 2 ft that grades prime for winter. In summer the feeding windows fall in after dark and early morning. Tie on a spoon at the thermocline or a deep stickbait (night) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 3 to 10 ft | night & dawn | Break off the point (2 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 2 to 10 ft | dusk & dawn | Main-lake point (2 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 1 to 10 ft | dawn | Break off the point (2 ft) | Jigging spoon, Small stickbait (slow) |
The spring pattern is a shallow one: chinook salmon in 1 to 10 ft. The depth story barely changes: 3 to 10 ft through summer, 3 to 10 ft in winter. The spot to know is Deep basin, a deep basin in about 2 ft of water that rates prime for chinook salmon in summer. Plan around early morning and the evening in the warm months. Summer baits: a flasher + fly (green/white) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 10 ft | dawn & dusk | Break off the point (2 ft) | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 3 to 10 ft | dawn & dusk | Deep basin (2 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 2 to 10 ft | dawn & dusk | Break off the point (2 ft) | J-plug (glow), Flasher + fly |
| Winter | 3 to 10 ft | midday | Deep basin (2 ft) | Small spoon on a slow troll, Stickbait deep |
In spring, coho salmon run shallow here, mostly 1 to 10 ft. Summer keeps them at 3 to 10 ft, and they winter in 3 to 10 ft. Summer coho salmon concentrate at Deep basin, a prime-rated deep basin around 2 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + fly or a medium spoon above the thermocline most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 3 to 10 ft | dawn & dusk | Deep basin (2 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 2 to 10 ft | dawn & dusk | Main-lake point (2 ft) | Casting spoon, Spinner (chartreuse) |
| Winter | 3 to 10 ft | midday | Deep basin (2 ft) | Small spoon, slow troll |
Early season walleye use the shallows, holding in 3 to 10 ft. Even in summer they hold at 3 to 10 ft; winter keeps them in 3 to 10 ft. Put Break off the point first on the milk run — a drop-off near 2 ft that grades prime for fall. In summer the feeding windows fall in 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | dusk & dawn | Main-lake point (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 10 ft | dusk & dawn | Break off the point (2 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 10 ft | dusk & night | Break off the point (2 ft) | Jigging rap, Jig + big minnow |
| Winter | 3 to 10 ft | dusk & dawn | Deep basin (2 ft) | Jigging spoon + minnow head, Rattle bait |
Grand River section also holds yellow perch (3 to 10 ft in summer), northern pike (3 to 10 ft in summer), muskellunge (3 to 10 ft in summer), smallmouth bass (3 to 10 ft in summer), largemouth bass (3 to 10 ft in summer), rock bass (3 to 10 ft in summer), crappie (3 to 10 ft in summer), bluegill (3 to 10 ft in summer), pumpkinseed (2 to 10 ft in summer), brown bullhead (3 to 10 ft in summer), channel catfish (3 to 10 ft in summer), freshwater drum (3 to 10 ft in summer), common carp (2 to 10 ft in summer), longnose gar (1 to 10 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 7 structure marks on this chart. The deepest, Main-lake point, sits near 2 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 Grand River section specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Grand River section is about 10 ft (3 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2016 (an MNRF lake survey).
Anglers target brook trout, rainbow trout, brown trout, chinook salmon, coho salmon, walleye, yellow perch, northern pike, muskellunge, smallmouth bass, largemouth bass, rock bass, crappie, bluegill, pumpkinseed, brown bullhead, channel catfish, freshwater drum, common carp, longnose gar on Grand River section.
Break off the point is the top-rated area: a drop-off in about 2 ft of water that rates prime for rainbow trout in winter. Every other rated spot, per species and season, is on the map above.
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Grand River section 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.
Puslinch Lake 8 mi · Deans Lake 11 mi · Shakespeare Pond 22 mi · Lake Belwood 22 mi · Christie Reservoir 23 mi · Cooley Pond 24 mi · Conestogo Lake 24 mi · Lake Victoria 29 mi · Lake Ontario - Hamilton Harbour 31 mi · Mud Lake 32 mi · Caledon Lake 33 mi · Lake Hunger 33 mi
See how Grand River section stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best northern pike lakes in Ontario
Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.