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63,941-acre Trondheimsfjord. West Basin Norway saltwater fishing map with official Kartverket surveyed 50 m bathymetry, measured-only fishing spots, Institute of Marine Research fish evidence, seasonal forage guidance and public shore-access context. The western main basin and Orkdal-connected water. The water tops out around 1978 ft. The depth chart comes from Norwegian Mapping Authority (Kartverket) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
The drawn water covers 63,892 acres wrapped in 96.4 miles of bank — one island included. An index of 2.7 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Roughly 1% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 23.6 mi, about 14.5 mi across. Its nearest charted neighbour, Storvatnet, is 15 mi to the northwest.
The target roster combines named-water evidence where available with conservative, habitat-compatible official Norwegian coastal records. It documents occurrence context, not equal abundance, a catch rate or a promised catch. Closed targets are excluded and current rules control every trip. The roster may combine exact-water monitoring with habitat-filtered official regional evidence; it does not imply that every species is equally abundant throughout the mapped section.
| Species | Evidence basis | Count / date |
|---|---|---|
| (Atlantic Cod) | official species listing | — |
| (Saithe (Coalfish)) | official species listing | — |
| (Pollack (Lyr)) | official species listing | — |
| (Haddock) | official species listing | — |
| (Atlantic Mackerel) | official species listing | — |
| (Atlantic Herring) | official species listing | — |
| (Sea Trout) | official species listing | — |
| (Atlantic Halibut) | official species listing | — |
| (Cusk (Tusk)) | official species listing | — |
Official species-evidence source.
In spring, atlantic cod run shallow here, mostly 20 to 100 ft. Summer pushes them deeper, 45 to 180 ft, and winter fish settle into 50 to 220 ft. Time it for early morning. You won't need more than a heavy metal jig or a large soft-plastic jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 20 to 100 ft | dawn | open water | Diamond jig, Heavy bucktail |
| Summer | 45 to 180 ft | dawn | open water | Heavy metal jig, Large soft-plastic jig |
| Fall | 25 to 140 ft | dawn | open water | Diamond jig, Bucktail with teaser |
| Winter | 50 to 220 ft | midday | open water | Heavy vertical jig |
Early season saithe (coalfish) use the shallows, holding in 15 to 160 ft. Summer is a 25 to 260 ft game here, winter a 45 to 320 ft one. Best bite is early morning and the evening. Tie on a speed jig or a heavy paddletail and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 160 ft | dawn & dusk | open water | Slim metal jig, Paddletail |
| Summer | 25 to 260 ft | dawn & dusk | open water | Speed jig, Heavy paddletail |
| Fall | 20 to 220 ft | dawn & dusk | open water | Metal jig, Baitfish swimbait |
| Winter | 45 to 320 ft | midday | open water | Heavy vertical jig |
In spring, pollack (lyr) run shallow here, mostly 8 to 100 ft. Summer pushes them deeper, 12 to 150 ft, and winter fish settle into 35 to 220 ft. Time it for early morning and the evening. You won't need more than a surface plug or a baitfish swimbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 100 ft | dawn & dusk | open water | Sandeel-pattern lure, Soft-plastic shad |
| Summer | 12 to 150 ft | dawn & dusk | open water | Surface plug, Baitfish swimbait |
| Fall | 15 to 160 ft | dawn | open water | Metal jig, Minnow plug |
| Winter | 35 to 220 ft | midday | open water | Slow metal jig, Weighted soft plastic |
When the water first warms, haddock slide up into 35 to 220 ft. Summer is a 60 to 320 ft game here, winter a 70 to 400 ft one. Start at Kartverket measured flat. It's a feeding flat holding about 276 ft of water and rates good come fall. The feeding windows run early morning. Keep a compact metal jig or a bottom rig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 35 to 220 ft | dawn | Kartverket measured flat (276 ft) | Small bottom jig, Beaded trace |
| Summer | 60 to 320 ft | dawn | Kartverket measured flat (276 ft) | Compact metal jig, Bottom rig |
| Fall | 45 to 260 ft | midday | Kartverket measured flat (276 ft) | Small vertical jig |
| Winter | 70 to 400 ft | midday | Kartverket measured flat (276 ft) | Deep bottom jig |
In spring, atlantic mackerel run shallow here, mostly 5 to 45 ft. Midsummer fish sit out in 15 to 80 ft before dropping to 30 to 120 ft for winter. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a feather rig or a small vertical jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | open water | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | open water | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | open water | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | open water | Small deep jig |
Early season atlantic herring use the shallows, holding in 5 to 25 ft. Summer is a 15 to 50 ft game here, winter a 20 to 60 ft one. Best bite is early morning and the evening. Tie on a herring feather rig or a small silver jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | open water | Small herring feather rig, Micro jig rig |
| Summer | 15 to 50 ft | dawn & dusk | open water | Herring feather rig, Small silver jig |
| Fall | 10 to 40 ft | dawn & dusk | open water | Small feather rig, Compact silver spoon |
| Winter | 20 to 60 ft | midday | open water | Small silver jig, Sparse feather rig |
Trondheimsfjord - West Basin also holds sea trout (15 to 50 ft in summer), atlantic halibut (25 to 300 ft in summer), cusk (tusk) (110 to 650 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 8 structure marks on this chart. The deepest, Deepest basin, sits near 1978 ft.
Access data: Norwegian Environment Agency (Miljødirektoratet) — state-secured outdoor recreation areas. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Norway waters are set by the Norwegian Directorate of Fisheries (sea-angling rules) — and special regulations can apply to Trondheimsfjord - West Basin specifically, so confirm the current rules before you fish.
Check the official Norway fishing regulations →
Trondheimsfjord - West Basin is about 1978 ft (603 m) deep at its deepest point. The depth chart comes from Norwegian Mapping Authority (Kartverket) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Institute of Marine Research four-fjord pelagic survey, 2025 informs the atlantic cod, saithe (coalfish), pollack (lyr), haddock, atlantic mackerel, atlantic herring, sea trout, atlantic halibut, cusk (tusk) roster for Trondheimsfjord - West Basin. The mixed roster combines exact-water records where available with habitat-filtered regional evidence; not every species is documented at this exact water, and it is not a promise of equal abundance or a catch on a particular trip.
Kartverket measured flat is the top-rated area: a feeding flat in about 276 ft of water that rates good for haddock in fall. The interactive chart above rates every 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 Trondheimsfjord - West Basin is regulated by the Norwegian Directorate of Fisheries (sea-angling rules). Check the official Norway regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Storvatnet 15 mi · Trondheimsfjord - Trondheim Reach 16 mi · Trondheimsfjord - Outer 19 mi · Jonsvatnet 19 mi · Gangåsvatnet 20 mi · Ånøya 20 mi · Gjøljavatnet 21 mi · Gaustadvatnet 24 mi · Hostovatnet 26 mi · Søvatnet 29 mi · Selbusjøen 29 mi · Trondheimsfjord - East 31 mi
See how Trondheimsfjord - West Basin stacks up: best sea trout lakes in Norway · best atlantic herring lakes in Norway · best atlantic mackerel lakes in Norway · best atlantic cod lakes in Norway
Browse all Norway fishing maps. See every water on DepthScout. Bathymetry credit: Norwegian Mapping Authority (Kartverket) Bathymetry terrain models, surveyed 50 metre grid (Chart datum / sea-chart zero as distributed by Kartverket; 100% measured, 0% 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.