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343-acre lake near Southesk Parish. Government of New Brunswick lake depth survey. The lake tops out around 16 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. Species by species, here's what the data says the year looks like.
On the chart, Jacks Lake draws 343 acres inside 5.1 miles of shoreline. The shoreline is moderately structured (index 2) — enough points and pockets to pattern. The basin spans about 2 mi end to end and 0.4 mi across at its widest. You'll find it in Northumberland County. Closest neighbour on DepthScout: Tuadook Lake, 1 mi southwest of here.
The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. Midsummer fish sit out in 5 to 16 ft before dropping to 5 to 16 ft for winter. The spot to know is Secondary point, a point in about 5 ft of water that rates prime for smallmouth bass in fall. Plan around early morning and the evening in the warm months. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Secondary point (5 ft) | Ned rig, Tube jig |
| Summer | 5 to 16 ft | dawn & dusk | Secondary point (5 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 5 to 16 ft | midday & dawn | Secondary point (5 ft) | Jerkbait, Blade bait |
| Winter | 5 to 16 ft | midday | Break off the point (4 ft) | Blade bait, Hair jig |
Come spring, look for chain pickerel tight to the bank in 2 to 10 ft. They move out to 3 to 15 ft in summer and finish the year down in 4 to 16 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 ft that scores prime in spring. Best bite is early morning and the evening. A weedless spoon + trailer or a buzzbait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (2 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (2 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (2 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 4 to 16 ft | dawn | Shallow bay flat (2 ft) | Jigging spoon (through ice) |
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 5 to 16 ft game here, winter a 5 to 16 ft one. Start at Deep basin. It's a deep basin holding about 14 ft of water and rates prime come fall. The feeding windows run early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 5 to 16 ft | dawn | Deep basin (14 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 5 to 16 ft | midday | Deep basin (14 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 5 to 16 ft | midday & dawn | Deep basin (14 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts brook trout in skinny water — 2 to 15 ft is the zone. As the season builds they drop to 5 to 16 ft, wintering in 2 to 16 ft. Summer brook trout concentrate at Deep basin, a prime-rated deep basin around 14 ft. Warm-month bites cluster around early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 5 to 16 ft | dawn & dusk | Deep basin (14 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 16 ft | dawn | Deep basin (14 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring puts white perch in skinny water — 4 to 15 ft is the zone. As the season builds they drop to 5 to 16 ft, wintering in 5 to 16 ft. Summer white perch concentrate at Deep basin, a prime-rated deep basin around 14 ft. Warm-month bites cluster around early morning. A small spinner rig drifted or a 1/8 oz jigging spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Shallow bay flat (2 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 5 to 16 ft | dawn | Deep basin (14 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 5 to 16 ft | midday | Deep basin (14 ft) | Jigging spoon (small), Blade bait |
| Winter | 5 to 16 ft | dusk | Deep basin (14 ft) | Small rattle spoon, Tungsten + spikes |
6 pieces of structure are mapped here — Deep basin, around 14 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for New Brunswick waters are set by the New Brunswick fishing rules — and special regulations can apply to Jacks Lake specifically, so confirm the current rules before you fish.
Check the official New Brunswick fishing regulations →
Jacks Lake is about 16 ft (5 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target smallmouth bass, chain pickerel, yellow perch, brook trout, white perch on Jacks Lake. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Secondary point is the top-rated area: a point in about 5 ft of water that rates prime for smallmouth bass in fall. Scroll up to the map for the complete spot list by species and season.
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.
Fishing on Jacks Lake is regulated by the New Brunswick fishing rules. Check the official New Brunswick regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Tuadook Lake 1 mi · Holmes Lake 2 mi · Dark Lake 4 mi · North Renous Lake 5 mi · Mitchell Lake 7 mi · Sinclair Lake 7 mi · Halfmoon Lake 8 mi · Mains Lake 8 mi · Island Lake 9 mi · Logan Lake 9 mi · Blind Lake 10 mi · Little Trousers Lake 10 mi
See how Jacks Lake stacks up: best smallmouth bass lakes in New Brunswick · best yellow perch lakes in New Brunswick · best brook trout lakes in New Brunswick · best chain pickerel lakes in New Brunswick
More water nearby: Northumberland County fishing maps (67 charts). Browse all New Brunswick 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.