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Fishing Grefslisjøen: what the data says
94-acre lake in Norway. The lake tops out around 9 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. Here's the year, species by species, as the scoring engine sees it.
On the chart, Grefslisjøen draws 94 acres inside 2.6 miles of shoreline. The shoreline is moderately structured (index 1.9) — enough points and pockets to pattern. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout.
Gratis interaktivt fiskekart — Grefslisjøen, Norge: dybdekoter fra ekte dybdemålinger ned til 3 m (9 fot), og de beste fiskeplassene for ørret, abbor, gjedde med flere. Dybdekartet er modellberegnet fra innsjøens virkelige strandlinje og største dybde — bruk det som en veiledning, aldri til navigasjon.
Brown Trout fishing at Grefslisjøen
When the water first warms, brown trout slide up into 1 to 9 ft. The depth story barely changes: 3 to 9 ft through summer, 1 to 9 ft in winter. If you only fish one area, make it Break off the point: a drop-off around 8 ft that scores prime in summer. In summer the feeding windows fall in after dark and early morning. Keep a spoon at the thermocline or a deep stickbait (night) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 9 ft | dawn & dusk | Main-lake point (3 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 3 to 9 ft | night & dawn | Break off the point (8 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 2 to 9 ft | dusk & dawn | Main-lake point (3 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 1 to 9 ft | dawn | Break off the point (8 ft) | Jigging spoon, Small stickbait (slow) |
European Perch fishing at Grefslisjøen
Start shallow in spring: european perch sit in 2 to 9 ft that time of year. There's no big seasonal slide here — summer means 3 to 9 ft, winter 3 to 9 ft. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for european perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small crankbait (perch pattern) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 9 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 3 to 9 ft | dawn | Deep basin (8 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 3 to 9 ft | midday | Deep basin (8 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 3 to 9 ft | midday & dawn | Deep basin (8 ft) | Tungsten jig + maggots, Small balance jig |
Northern Pike fishing at Grefslisjøen
The spring pattern is a shallow one: northern pike in 2 to 8 ft. Midsummer fish sit out in 3 to 9 ft before dropping to 3 to 9 ft for winter. The spot to know is Shallow bay flat, a weed flat in about 2 ft of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 9 ft | dawn & dusk | Break off the point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 9 ft | midday & dawn | Break off the point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 9 ft | midday | Shallow bay flat (2 ft) | Tip-ups, Large jigging spoon |
Lake Whitefish fishing at Grefslisjøen
Spring lake whitefish on Grefslisjøen hold shallow, usually 3 to 9 ft. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. Put Deep basin first on the milk run — a deep basin near 8 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 9 ft | midday & dawn | Break off the point (8 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 3 to 9 ft | dawn | Deep basin (8 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 2 to 9 ft | dusk | Break off the point (8 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 3 to 9 ft | midday & dawn | Deep basin (8 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Notable structure
- Deep basin: deep basin, around 8 ft
- Break off the point: drop-off, around 8 ft
- Main-lake point: point, around 3 ft
- Secondary point: point, around 3 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
Grefslisjøen fishing regulations
Season dates, license requirements, and size and bag limits for Norway waters are set by the Norwegian Environment Agency (fishing rules) — and special regulations can apply to Grefslisjøen specifically, so confirm the current rules before you fish.
Check the official Norway fishing regulations →
Common questions
How deep is Grefslisjøen?
Grefslisjøen is about 9 ft (3 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Grefslisjøen?
Anglers target northern pike, european perch, brown trout, lake whitefish on Grefslisjøen. 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.
Where is the best fishing spot on Grefslisjøen?
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for european perch in spring. Scroll up to the map for the complete spot list by species and season.
When is the best time to fish Grefslisjøen?
For brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
What are the fishing regulations for Grefslisjøen?
Fishing on Grefslisjøen is regulated by the Norwegian Environment Agency (fishing 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.
Nearby waters
Hemnessjøen 4 mi · Skulerudvann 6 mi · Rødenessjøen 9 mi · Övre Hurr 11 mi, SE · Lisslevattnet 12 mi, SE · Djuptjärn 12 mi, SE · Mellan-Hurr 13 mi, SE · Sätersjön 13 mi, SE · Stora Gökstjärn 13 mi, SE · Holmesjön 13 mi, SE · Östra Römungen 13 mi, SE · Kroksjön 14 mi, SE
See how Grefslisjøen stacks up: best northern pike lakes in Norway · best european perch lakes in Norway · best brown trout lakes in Norway · best lake whitefish lakes in Norway
Browse all Norway fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.