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6,468-acre lake near Harvey Rural Community. Government of New Brunswick lake depth survey. The lake tops out around 35 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. Every species below gets its seasonal read from the same numbers driving the chart.
On the chart, Magaguadavic Lake draws 6,476 acres inside 38 miles of shoreline — 6 islands included. A development index of 3.4 means a maze of bays and points: far more casting targets than a round bowl of the same size. About 70% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Tip to tip the water measures near 7.2 mi with a 4.2-mi widest point. The water lies in York County. For a second option, Little Magaguadavic Lake lies 6 mi north.
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 11 to 35 ft. The spot to know is Shoreline point, a point in about 9 ft of water that rates prime for smallmouth bass in fall. Warm-month bites cluster around early morning and the evening. 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 | Gravel shoal (5 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Shoreline point (9 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Shoreline point (9 ft) | Jerkbait, Blade bait |
| Winter | 11 to 35 ft | midday | Break off the point (7 ft) | Blade bait, Hair jig |
When the water first warms, chain pickerel slide up into 2 to 10 ft. By summer they slide out to 3 to 15 ft, and by winter most fish are in 5 to 18 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 1 ft that scores prime in spring. In summer the feeding windows fall in 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 (1 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (1 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Break off the point (7 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Break off the point (7 ft) | Jigging spoon (through ice) |
Come spring, look for yellow perch tight to the bank in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 15 to 35 ft. Start at Deep basin. It's a deep basin holding about 28 ft of water and rates prime come fall. Prime time lands in 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 | Gravel shoal (5 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (28 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (28 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (28 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, brook trout run shallow here, mostly 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. Fall brook trout concentrate at Gravel shoal, a prime-rated gravel shoal around 2 ft. Fish it in early morning and the evening and you'll meet the bite. 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 | Gravel shoal (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Deep basin (28 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Gravel shoal (2 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Gravel shoal (5 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, white perch run shallow here, mostly 4 to 15 ft. Midsummer fish sit out in 11 to 35 ft before dropping to 11 to 35 ft for winter. Summer white perch concentrate at Deep basin, a prime-rated deep basin around 28 ft. Fish it in early morning and you'll meet the bite. 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 | Gravel shoal (5 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 11 to 35 ft | dawn | Deep basin (28 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 11 to 35 ft | midday | Deep basin (28 ft) | Jigging spoon (small), Blade bait |
| Winter | 11 to 35 ft | dusk | Deep basin (28 ft) | Small rattle spoon, Tungsten + spikes |
13 pieces of structure are mapped here — Deep basin, around 28 ft, is the deepest of them.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
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 Magaguadavic Lake specifically, so confirm the current rules before you fish.
Check the official New Brunswick fishing regulations →
Magaguadavic Lake is about 35 ft (11 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 Magaguadavic 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.
Shoreline point is the top-rated area: a point in about 9 ft of water that rates prime for smallmouth bass in fall. 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 Magaguadavic 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.
Little Magaguadavic Lake 6 mi · Harvey Lake 8 mi · Thompsons Lake 9 mi · Lake George 10 mi · Modsley Lake 10 mi · Holland Lake 10 mi · Fifth Lake 11 mi · Wauklahegan Lake 11 mi · Sixth Lake 12 mi · First Lake 13 mi · Oromocto Lake 13 mi · Palfrey Lake 14 mi
See how Magaguadavic 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: York County fishing maps (30 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.