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Rating depth structure for atlantic mackerel.
Shared by DepthScout anglers. Exact spots stay private, always.
231-acre Flagg Cove fishing map with contributor-qualified CHS NONNA survey contours (88.24% measured, 95.72% assessed), four measured spots, nearby DFO cod, mackerel and forage evidence, working-harbour context, and current groundfish, mackerel and CSSP rules. The water tops out around 55 ft. The depth chart comes from CHS bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
The drawn water covers 231 acres wrapped in 3.6 miles of bank. With a 1.7 development index there's bank structure worth casting at, in moderation. 48% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 1 mi with a 0.6-mi widest point. If the bite dies, Eel Lake is 2 mi to the northwest.
Spring puts atlantic cod in skinny water — 11 to 55 ft is the zone. Summer fish stay in 14 to 55 ft, and winter fish hold in 13 to 55 ft. Flagg Cove surveyed deepest basin cell is the standout, a deep basin at roughly 55 ft, rated prime for winter atlantic cod. Plan around early morning in the warm months. A heavy metal jig or a large soft-plastic jig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 11 to 55 ft | dawn | Flagg Cove northeastern surveyed entrance edge (16 ft) | Diamond jig, Heavy bucktail |
| Summer | 14 to 55 ft | dawn | Flagg Cove surveyed deepest basin cell (55 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 10 to 55 ft | dawn | Flagg Cove northeastern surveyed entrance edge (16 ft) | Diamond jig, Bucktail with teaser |
| Winter | 13 to 55 ft | midday | Flagg Cove surveyed deepest basin cell (55 ft) | Heavy vertical jig |
Spring puts atlantic mackerel in skinny water — 5 to 45 ft is the zone. As the season builds they drop to 10 to 55 ft, wintering in 14 to 55 ft. Summer atlantic mackerel concentrate at Flagg Cove surveyed central basin, a prime-rated deep basin around 11 ft. Warm-month bites cluster around early morning and the evening. A feather rig or a small vertical jig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | Flagg Cove northeastern surveyed entrance edge (16 ft) | Mackerel feather rig, Small silver jig |
| Summer | 10 to 55 ft | dawn & dusk | Flagg Cove surveyed central basin (11 ft) | Feather rig, Small vertical jig |
| Fall | 8 to 55 ft | dawn & dusk | Flagg Cove surveyed central basin (11 ft) | Compact silver jig, Sparse feather rig |
| Winter | 14 to 55 ft | midday | Flagg Cove surveyed deepest basin cell (55 ft) | Small deep jig |
Count 8 structure marks on this chart. The deepest, Flagg Cove surveyed deepest basin cell, sits near 55 ft.
Access data: Fisheries and Oceans Canada — Small Craft Harbours. 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 Flagg Cove specifically, so confirm the current rules before you fish.
Check the official New Brunswick fishing regulations →
Flagg Cove is about 55 ft (17 m) deep at its deepest point. The depth chart comes from CHS bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target atlantic cod, atlantic mackerel on Flagg Cove.
Flagg Cove surveyed deepest basin cell is the top-rated area: a deep basin in about 55 ft of water that rates prime for atlantic cod in winter. Open the map above to see every rated spot for each species and season.
For atlantic cod, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Flagg Cove 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.
Eel Lake 2 mi · Little Lake 3 mi · Wilson Pond 3 mi · Dwellys Pond 7 mi · Lake Glensevern 12 mi · Bradford Cove Pond 12 mi · Johnson Bay 14 mi, ME · Harris Cove 16 mi, ME · Cobscook Bay 19 mi, ME · East Bay 22 mi, ME · Rocky Lake 26 mi, ME · Boyden Lake 26 mi, ME
Browse all New Brunswick fishing maps or see every water on DepthScout. Bathymetry credit: CHS NONNA 10 (CHS Chart Datum (CD); 88% measured, 7% source-interpolated). 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.