Lake depth chart
Today's read
Rating depth structure for northern pike.
Recent public catches load as you reach this section.
288-acre lake in Finland. The lake tops out around 10 m. The depth chart comes from Finnish Environment Institute (Syke) 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.
Vesi piirtyy 116 hehtaarin laajuisena, rantaa 9.5 km. Rantaviiva on voimakkaasti rikkonainen (indeksi 2.5) — lahtia ja niemiä kaikkialla, mikä moninkertaistaa kalastettavan reunan. Noin 84% pinnasta on matalampaa kuin ~5 m — siellä ruokaketju elää. Päästä päähän vesi mittaa noin 2.3 km, leveimmillään 1.6 km. Vesi sijaitsee alueella Kehys-Kainuun seutukunta. Lähin kartoitettu vesi on Aittojärvi, 4.8 km etelään.
Ilmainen interaktiivinen kalastuskartta — Syrjä-Somer, Suomi: syvyyskäyrät todellisista syvyysmittauksista 10 metriin (33 jalkaa) asti, parhaat kalapaikat lajeille ahven, hauki, siika ja muut. Syvyyskäyrät perustuvat Syken todellisiin syvyysmittauksiin (CC BY 4.0). Käytä karttaa suuntaa-antavana, älä koskaan navigointiin.
When the water first warms, european perch slide up into 1 to 3.5 m. By summer they slide out to 2.5 to 8.5 m, and by winter most fish are in 3.5 to 10 m. If you only fish one area, make it Shallow bay flat: a weed flat around 1 m that scores prime in spring. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small crankbait (perch pattern) rigged through the warm months.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 3.5 m | midday & dawn | Shallow bay flat (1 m) | Small jig + curly tail, Inline spinner #1-2 |
| Kesä | 2.5 to 8.5 m | dawn | Break off the point (6 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Syksy | 3 to 10 m | midday | Deep basin (9.5 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 3.5 to 10 m | midday & dawn | Deep basin (9.5 m) | Tungsten jig + maggots, Small balance jig |
Spring northern pike on Syrjä-Somer hold shallow, usually 0.5 to 2.5 m. By summer they slide out to 2.5 to 6 m, and by winter most fish are in 1.5 to 4.5 m. The chart's best answer is Shallow bay flat — weed flat, 1 m, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (1 m) | #5 inline spinner, Spoon (red/white) |
| Kesä | 2.5 to 6 m | dawn & dusk | Back-bay flat (2.5 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 2 to 5.5 m | midday & dawn | Back-bay flat (2.5 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1.5 to 4.5 m | midday | Back-bay flat (2.5 m) | Tip-ups, Large jigging spoon |
Spring puts lake whitefish in skinny water — 3 to 10 m is the zone. Summer fish stay in 3 to 10 m, and winter fish hold in 3 to 10 m. Deep basin is the standout, a deep basin at roughly 9.5 m, rated prime for summer lake whitefish. Plan around early morning in the warm months. A blade bait vertical or a small jigging spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 3 to 10 m chart-limited; documented 4.5 to 14 m | midday & dawn | Break off the point (6 m) | Small jig + waxworm, Blade bait (small) |
| Kesä | 3 to 10 m chart-limited; documented 12 to 27 m | dawn | Deep basin (9.5 m) | Blade bait vertical, Small jigging spoon |
| Syksy | 2.5 to 9 m | dusk | Break off the point (6 m) | Small spoon (gold), Jig + plastic larva |
| Talvi | 3 to 10 m chart-limited; documented 7.5 to 21 m | midday & dawn | Deep basin (9.5 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
Early season burbot use the shallows, holding in 3 to 10 m. Even in summer they hold at 3 to 10 m; winter keeps them in 2.5 to 10 m. The chart's best answer is Deep basin — deep basin, 9.5 m, prime for spring. Best bite is after dark and midday. Tie on a heavy jig + cut bait and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 3 to 10 m chart-limited; documented 7.5 to 21 m | night & dusk | Deep basin (9.5 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Kesä | 3 to 10 m chart-limited; documented 15 to 37 m | night & midday | Deep basin (9.5 m) | Heavy jig + cut bait |
| Syksy | 3 to 10 m chart-limited; documented 9 to 24 m | night & dusk | Deep basin (9.5 m) | Glow spoon + minnow head, Blade bait (slow) |
| Talvi | 2.5 to 10 m chart-limited; documented 4.5 to 18 m | night & dusk | Deep basin (9.5 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Syrjä-Somer carries 7 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 9.5 m down.
Season dates, license requirements, and size and bag limits for Finland waters are set by the Kalastusrajoitus.fi (official Finnish restriction service) — and special regulations can apply to Syrjä-Somer specifically, so confirm the current rules before you fish.
Check the official Finland fishing regulations →
Syrjä-Somer is about 33 ft (10 m) deep at its deepest point. The depth chart comes from Finnish Environment Institute (Syke) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Syrjä-Somer on syvimmillään noin 10 metriä (33 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Anglers target european perch, northern pike, lake whitefish, burbot on Syrjä-Somer. 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 4 ft of water that rates prime for european perch in spring. The map above holds the full rated-spot list for every species and season.
For european perch, 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 Syrjä-Somer is regulated by the Kalastusrajoitus.fi (official Finnish restriction service). Check the official Finland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Aittojärvi 3 mi · Saarijärvi 4 mi · Rytilampi 5 mi · Pistojärvi 7 mi · Kuilisjärvi 7 mi · Persejärvi 8 mi · Paukuttaja 8 mi · Saukkojärvi 9 mi · Hietanen 10 mi · Hoikka-Paukuttaja 10 mi · Iso-Peranka 12 mi · Sarvijärvi 13 mi
See how Syrjä-Somer stacks up: best northern pike lakes in Finland · best european perch lakes in Finland · best lake whitefish lakes in Finland · best burbot lakes in Finland
More water nearby: Kehys-Kainuun seutukunta fishing maps (445 charts). Browse all Finland fishing maps. See every water on DepthScout. Bathymetry credit: Finnish Environment Institute (Syke), Järvien ja jokien syvyysaineisto, CC BY 4.0. 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.