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Rating depth structure for northern pike.
Recent public catches load as you reach this section.
240-acre lake in Sweden. The lake tops out around 27 m. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. What follows comes from the same scoring engine that paints the spots above.
Vattnet ritar ut 97 hektar med 6 km strand. Strandlinjen är måttligt strukturerad (index 1.7) — tillräckligt med uddar och vikar att fiska av. Ungefär 28% av ytan är grundare än ~5 m — där finns vegetationen och betesfisken. Räkna med 1.6 km vatten från ena änden till den andra och 1.3 km på bredden. Sjön ligger i Dals-Ed kommun. Sandsjön ligger 1.6 km åt sydost — närmaste grannvatten på kartan.
Gratis interaktiv fiskekarta — Grundsjön, Sverige: ungefärliga djupkurvor ner till 27 m (89 fot), och de bästa fiskeplatserna för gädda, abborre, öring med flera. Djupkartan är modellberäknad från sjöns verkliga strandlinje och största djup — använd den som vägledning, aldrig för navigation.
The spring pattern is a shallow one: northern pike in 0.5 to 2.5 m. As the season builds they drop to 2.5 to 6 m, wintering in 1.5 to 4.5 m. Top water on the chart: Shallow bay flat, a weed flat in the 2 m range, prime in spring. Time it for early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (2 m) | #5 inline spinner, Spoon (red/white) |
| Sommar | 2.5 to 6 m | dawn & dusk | Shallow bay flat (2 m) | Bucktail, Weedless spoon over cabbage |
| Höst | 2 to 5.5 m | midday & dawn | Shallow bay flat (2 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Vinter | 1.5 to 4.5 m | midday | Shallow bay flat (2 m) | Tip-ups, Large jigging spoon |
Start shallow in spring: european perch sit in 1 to 3.5 m that time of year. Warm water sends them out to 2.5 to 8.5 m; cold water stacks them in 3.5 to 10 m. Top water on the chart: Shallow bay flat, a weed flat in the 2 m range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a drop-shot micro plastics or a small crankbait (perch pattern) until the fish tell you otherwise.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 3.5 m | midday & dawn | Shallow bay flat (2 m) | Small jig + curly tail, Inline spinner #1-2 |
| Sommar | 2.5 to 8.5 m | dawn | Shallow bay flat (2 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Höst | 3 to 10 m | midday | Break off the point (12 m) | Jigging spoon (small), Drop-shot on deep flats |
| Vinter | 3.5 to 10 m | midday & dawn | open water | Tungsten jig + maggots, Small balance jig |
When the water first warms, brown trout slide up into 1 to 7.5 m. Summer is a 7.5 to 18 m game here, winter a 1.5 to 11 m one. Start at Break off the point. It's a drop-off holding about 12 m of water and rates prime come summer. The feeding windows run after dark and early morning. Keep a spoon at the thermocline or a deep stickbait (night) rigged through the warm months.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 7.5 m | dawn & dusk | Main-lake point (6.5 m) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Sommar | 7.5 to 18 m | night & dawn | Break off the point (12 m) | Spoon at the thermocline, Deep stickbait (night) |
| Höst | 1.5 to 9 m | dusk & dawn | Main-lake point (6.5 m) | Jerkbait over gravel, Casting spoon |
| Vinter | 1.5 to 11 m | dawn | Break off the point (12 m) | Jigging spoon, Small stickbait (slow) |
Spring lake whitefish on Grundsjön hold shallow, usually 4.5 to 14 m. By summer they slide out to 8 to 27 m, and by winter most fish are in 7.5 to 21 m. The chart's best answer is Deep basin — deep basin, 23 m, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 4.5 to 14 m | midday & dawn | Break off the point (12 m) | Small jig + waxworm, Blade bait (small) |
| Sommar | 8 to 27 m chart-limited; documented 12 to 27 m | dawn | Deep basin (23 m) | Blade bait vertical, Small jigging spoon |
| Höst | 2.5 to 9 m | dusk | Main-lake point (6.5 m) | Small spoon (gold), Jig + plastic larva |
| Vinter | 7.5 to 21 m | midday & dawn | Deep basin (23 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, burbot run shallow here, mostly 7.5 to 21 m. Summer pushes them deeper, 8 to 27 m, and winter fish settle into 4.5 to 18 m. Deep basin is the standout, a deep basin at roughly 23 m, rated prime for summer burbot. Time it for after dark and midday. You won't need more than a heavy jig + cut bait most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 7.5 to 21 m | night & dusk | Deep basin (23 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Sommar | 8 to 27 m chart-limited; documented 15 to 37 m | night & midday | Deep basin (23 m) | Heavy jig + cut bait |
| Höst | 9 to 24 m | night & dusk | Deep basin (23 m) | Glow spoon + minnow head, Blade bait (slow) |
| Vinter | 4.5 to 18 m | night & dusk | Break off the point (12 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
The chart marks 6 structure features on Grundsjön; the deepest is Deep basin at about 23 m.
Season dates, license requirements, and size and bag limits for Sweden waters are set by the Svenska Fiskeregler (official Swedish rules service) — and special regulations can apply to Grundsjön specifically, so confirm the current rules before you fish.
Check the official Sweden fishing regulations →
Grundsjön is about 89 ft (27 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Grundsjön är som djupast cirka 27 meter (89 fot). Djupkartan är modellberäknad från sjöns verkliga strandlinje — använd den som vägledning, aldrig för navigation.
Anglers target northern pike, european perch, brown trout, lake whitefish, burbot on Grundsjön. 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.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for northern pike in spring. The interactive chart above rates every spot for each species and season.
For northern pike, 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 Grundsjön is regulated by the Svenska Fiskeregler (official Swedish rules service). Check the official Sweden regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Sandsjön 1 mi · Valsebotjärnet 1 mi · Bengtsvikevattnet 2 mi · Risevattnet 2 mi · Hedvattnet 3 mi · Bomarkstjärnet 4 mi · Husetjärn 4 mi · Husetjärn 4 mi · Lyssjö 5 mi · Älgsjön 5 mi · Svarttjärnen 5 mi · Rösvattnet 5 mi
See how Grundsjön stacks up: best northern pike lakes in Sweden · best european perch lakes in Sweden · best brown trout lakes in Sweden · best lake whitefish lakes in Sweden
More water nearby: Dals-Ed Municipality fishing maps (24 charts). Browse all Sweden fishing maps. See every water on DepthScout. 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.