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Rating depth structure for zander.
Shared by DepthScout anglers. Exact spots stay private, always.
13,467-acre lake near Alingsås. The lake tops out around 48 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.
Mjörn mäter 5 348 hektar bakom 128.6 km strandlinje, uppbruten av 40 öar. Ett strandindex på 5 betyder en labyrint av vikar och uddar: många fler kastmål än en rund sjö i samma storlek. Ungefär 28% av ytan är grundare än ~5 m — där finns vegetationen och betesfisken. Räkna med 15.3 km vatten från ena änden till den andra och 7.9 km på bredden. Sjön ligger i Lerum kommun. Lilla Lången ligger 4.8 km åt sydost — närmaste grannvatten på kartan.
Gratis interaktiv fiskekarta — Mjörn, Sverige: ungefärliga djupkurvor ner till 48 m (157 fot), och de bästa fiskeplatserna för gädda, abborre, gös med flera. Djupkartan är modellberäknad från sjöns verkliga strandlinje och största djup — använd den som vägledning, aldrig för navigation.
Spring puts northern pike in skinny water — 0.5 to 2.5 m is the zone. Warm water sends them out to 2.5 to 6 m; cold water stacks them in 1.5 to 4.5 m. Shallow bay flat is the standout, a weed flat at roughly 2 m, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. A bucktail or a weedless spoon over cabbage covers the summer program.
| 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 |
Spring puts european perch in skinny water — 1 to 3.5 m is the zone. As the season builds they drop to 2.5 to 8.5 m, wintering in 3.5 to 10 m. Spring european perch concentrate at Shallow bay flat, a prime-rated weed flat around 2 m. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small crankbait (perch pattern) covers the summer program.
| 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 | Offshore hump (4 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Höst | 3 to 10 m | midday | Offshore hump (4 m) | Jigging spoon (small), Drop-shot on deep flats |
| Vinter | 3.5 to 10 m | midday & dawn | Offshore hump (4 m) | Tungsten jig + maggots, Small balance jig |
Spring puts zander in skinny water — 1 to 4.5 m is the zone. As the season builds they drop to 4.5 to 11 m, wintering in 6 to 12 m. Spring zander concentrate at Rock reef, a prime-rated rock pile around 2.5 m. Warm-month bites cluster around the evening and early morning. A vertical softbait over humps or a deep crankbait covers the summer program.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 4.5 m | dusk & dawn | Rock reef (2.5 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Sommar | 4.5 to 11 m | dusk & dawn | Offshore hump (4 m) | Vertical softbait over humps, Deep crankbait |
| Höst | 3.5 to 12 m | dusk & night | Main-lake point (12 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Vinter | 6 to 12 m | dusk & dawn | Main-lake point (12 m) | Vertical jig / mormyshka with bait, Slow blade bait |
Start shallow in spring: burbot sit in 7.5 to 21 m that time of year. Warm water sends them out to 15 to 37 m; cold water stacks them in 4.5 to 18 m. Top water on the chart: Offshore hump, an offshore hump in the 4 m range, prime in winter. Fish it in after dark and midday and you'll meet the bite. Throw a heavy jig + cut bait until the fish tell you otherwise.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 7.5 to 21 m | night & dusk | Break off the point (22 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Sommar | 15 to 37 m | night & midday | Deep basin (41 m) | Heavy jig + cut bait |
| Höst | 9 to 24 m | night & dusk | Break off the point (22 m) | Glow spoon + minnow head, Blade bait (slow) |
| Vinter | 4.5 to 18 m | night & dusk | Offshore hump (4 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Early season brown trout use the shallows, holding in 1 to 7.5 m. Expect a summer slide to 7.5 to 18 m, then a winter hold in 1.5 to 11 m. Put Shoreline point first on the milk run — a point near 1 m that grades prime for spring. In summer the feeding windows fall in after dark and early morning. Tie on a spoon at the thermocline or a deep stickbait (night) and you're in the game.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 7.5 m | dawn & dusk | Shoreline point (1 m) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Sommar | 7.5 to 18 m | night & dawn | Main-lake point (12 m) | Spoon at the thermocline, Deep stickbait (night) |
| Höst | 1.5 to 9 m | dusk & dawn | Rock reef (2.5 m) | Jerkbait over gravel, Casting spoon |
| Vinter | 1.5 to 11 m | dawn | Break off the point (22 m) | Jigging spoon, Small stickbait (slow) |
Structure-wise the chart holds 24 features, led in depth by Deep basin at roughly 41 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 Mjörn specifically, so confirm the current rules before you fish.
Check the official Sweden fishing regulations →
Mjörn is about 157 ft (48 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.
Mjörn är som djupast cirka 48 meter (157 fot). Djupkartan är modellberäknad från sjöns verkliga strandlinje — använd den som vägledning, aldrig för navigation.
Anglers target northern pike, european perch, zander, burbot, brown trout on Mjörn.
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 map above holds the full rated-spot list for every 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 Mjörn 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.
Lilla Lången 3 mi · Öjasjön 4 mi · Flatavattnet 4 mi · Lilla Tinnsjön 4 mi · Strättsjön 4 mi · Stora Fjällsjön 4 mi · Porssjön 4 mi · Kroksjön 4 mi · Ämtarevatten 5 mi · Bysjön 5 mi · Sundasjön 5 mi · Jättesjön 5 mi
See how Mjörn stacks up: best zander lakes in Sweden · best northern pike lakes in Sweden · best european perch lakes in Sweden · best brown trout lakes in Sweden
More water nearby: Lerum Municipality fishing maps (27 charts). Browse all Sweden fishing maps or 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.