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774-acre lake near Southesk Parish. Government of New Brunswick lake depth survey. The lake tops out around 22 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. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 774 acres of water rimmed by 5.8 miles of bank. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. The shallow band under 15 ft claims about 88% of the surface — that's where the groceries are. Figure 2.2 mi of water from one end to the other, 0.8 mi at the beam. You'll find it in Northumberland County. For a second option, Whitney Pond lies 2 mi southwest.
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. Warm water sends them out to 7 to 22 ft; cold water stacks them in 7 to 22 ft. Top water on the chart: Break off the point, a drop-off in the 11 ft range, prime in winter. Fish it in early morning and the evening and you'll meet the bite. Throw a drop shot (goby/minnow) or a ned rig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Secondary point (3 ft) | Ned rig, Tube jig |
| Summer | 7 to 22 ft | dawn & dusk | Break off the point (11 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 7 to 22 ft | midday & dawn | Break off the point (11 ft) | Jerkbait, Blade bait |
| Winter | 7 to 22 ft | midday | Break off the point (11 ft) | Blade bait, Hair jig |
When the water first warms, chain pickerel slide up into 2 to 10 ft. Summer is a 3 to 15 ft game here, winter a 5 to 18 ft one. Start at Shallow bay flat. It's a weed flat holding about 4 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a weedless spoon + trailer or a buzzbait rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (4 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (4 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Shallow bay flat (4 ft) | Jigging spoon (through ice) |
Come spring, look for yellow perch tight to the bank in 3 to 12 ft. They move out to 7 to 22 ft in summer and finish the year down in 7 to 22 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. Best bite is early morning. A drop-shot micro plastics or a small spoon tipped with worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 7 to 22 ft | dawn | Deep basin (22 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 7 to 22 ft | midday | Deep basin (22 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 7 to 22 ft | midday & dawn | Deep basin (22 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 7 to 22 ft, and winter fish settle into 3 to 20 ft. Deep basin is the standout, a deep basin at roughly 22 ft, rated prime for summer brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| 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 | 7 to 22 ft | dawn & dusk | Deep basin (22 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 | 3 to 20 ft | dawn | Break off the point (11 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, white perch run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 7 to 22 ft, and winter fish settle into 7 to 22 ft. Deep basin is the standout, a deep basin at roughly 22 ft, rated prime for summer white perch. Time it for early morning. You won't need more than a small spinner rig drifted or a 1/8 oz jigging spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Shallow bay flat (4 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 7 to 22 ft | dawn | Deep basin (22 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 7 to 22 ft | midday | Deep basin (22 ft) | Jigging spoon (small), Blade bait |
| Winter | 7 to 22 ft | dusk | Deep basin (22 ft) | Small rattle spoon, Tungsten + spikes |
Count 7 structure marks on this chart. The deepest, Deep basin, sits near 22 ft.
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 Mullin Stream Lake specifically, so confirm the current rules before you fish.
Check the official New Brunswick fishing regulations →
Mullin Stream Lake is about 22 ft (7 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 Mullin Stream 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.
Break off the point is the top-rated area: a drop-off in about 11 ft of water that rates prime for smallmouth bass in winter. The map above holds the full rated-spot list for every 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 Mullin Stream 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.
Whitney Pond 2 mi · Guagus Lake 2 mi · Little Trousers Lake 7 mi · North Lake 8 mi · Blind Lake 9 mi · South Lake 9 mi · Mains Lake 9 mi · Peabody Lake 11 mi · Clearwater Lake 11 mi · Little McKendrick Lake 11 mi · McKendrick Lake 11 mi · Rocky Brook Lake 12 mi
See how Mullin Stream 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.