Shared by DepthScout anglers. Exact spots stay private, always.
15,149-acre lake near Weston. Government of New Brunswick lake depth survey. The lake tops out around 120 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.
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. They move out to 10 to 30 ft in summer and finish the year down in 20 to 45 ft. Rock reef is the standout, a rock pile at roughly 8 ft, rated prime for spring smallmouth bass. In summer the feeding windows fall in early morning and the evening. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| 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 | 20 to 45 ft | midday | Blade bait, Hair jig |
In spring, chain pickerel run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 3 to 15 ft, and winter fish settle into 5 to 18 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring chain pickerel. Best bite is early morning and the evening. Tie on a weedless spoon + trailer or a buzzbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Jigging spoon (through ice) |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for yellow perch in spring. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| 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 | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Main-lake point: a point around 14 ft that scores prime in spring. Plan around early morning and the evening in the warm months. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
In spring, white perch run shallow here, mostly 4 to 15 ft. By summer they slide out to 15 to 40 ft, and by winter most fish are in 20 to 50 ft. Feeding flat is the standout, a feeding flat at roughly 30 ft, rated prime for summer white perch. In summer the feeding windows fall in early morning. Tie on a small spinner rig drifted or a 1/8 oz jigging spoon and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Small jig + curly tail, Inline spinner (silver) |
| Summer | 15 to 40 ft | dawn | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 15 to 45 ft | midday | Jigging spoon (small), Blade bait |
| Winter | 20 to 50 ft | dusk | Small rattle spoon, Tungsten + spikes |
Start shallow in spring: lake trout sit in 10 to 40 ft that time of year. Summer pushes them deeper, 50 to 120 ft, and winter fish settle into 20 to 80 ft. The spot to know is Deep basin, a deep basin in about 114 ft of water that rates prime for lake trout in summer. In summer the feeding windows fall in early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | White tube jig, Airplane jig |
Grand Lake also holds landlocked salmon (25 to 60 ft in summer). Pick any of them on the map above for rated spots and bait picks.
How deep is Grand Lake?
Grand Lake is about 120 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 Grand Lake?
Anglers target smallmouth bass, yellow perch, lake trout, brook trout, landlocked salmon, chain pickerel, white perch on Grand Lake.
Where is the best fishing spot on Grand Lake?
Rock reef is the top-rated area: a rock pile in about 8 ft of water that rates prime for smallmouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Grand Lake?
For smallmouth bass, 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.