Lake depth chart
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Rating depth structure for zander.
Recent public catches load as you reach this section.
199-acre lake in Finland. The lake tops out around 3 m. The depth chart comes from Finnish Environment Institute (Syke) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
Vesi piirtyy 81 hehtaarin laajuisena, rantaa 7.9 km. Rantaviiva on voimakkaasti rikkonainen (indeksi 2.5) — lahtia ja niemiä kaikkialla, mikä moninkertaistaa kalastettavan reunan. Koko vesi on matalampaa kuin ~5 m — kasvillisuutta ja saaliskalaa rannasta rantaan. Päästä päähän vesi mittaa noin 3.1 km, leveimmillään 0.8 km. Vesi sijaitsee alueella Helsinki sub-region. Lähin kartoitettu vesi on Pentalanjärvi, 6.4 km kaakkoon.
Ilmainen interaktiivinen kalastuskartta — Finnträsk, Suomi: syvyyskäyrät todellisista syvyysmittauksista 3 metriin (10 jalkaa) asti, parhaat kalapaikat lajeille ahven, hauki, kuha ja muut. Syvyyskäyrät perustuvat Syken todellisiin syvyysmittauksiin (CC BY 4.0). Käytä karttaa suuntaa-antavana, älä koskaan navigointiin.
Come spring, look for european perch tight to the bank in 1 to 3 m. Through summer count on 1 to 3 m; the winter hold is 1 to 3 m. Start at Shallow bay flat. It's a weed flat holding about 1 m of water and rates prime come spring. Prime time lands in early morning. A drop-shot micro plastics or a small crankbait (perch pattern) is the honest summer answer here.
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 | 1 to 3 m chart-limited; documented 1 to 3.5 m | midday & dawn | Shallow bay flat (1 m) | Small jig + curly tail, Inline spinner #1-2 |
| Kesä | 1 to 3 m chart-limited; documented 2.5 to 8.5 m | dawn | Deep basin (3 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Syksy | 1 to 3 m chart-limited; documented 3 to 10 m | midday | Deep basin (3 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 1 to 3 m chart-limited; documented 3.5 to 10 m | midday & dawn | Deep basin (3 m) | Tungsten jig + maggots, Small balance jig |
Early season northern pike use the shallows, holding in 0.5 to 2.5 m. Expect a summer slide to 1 to 3 m, then a winter hold in 1 to 3 m. Put Shallow bay flat first on the milk run — a weed flat near 1 m that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage 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 | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (1 m) | #5 inline spinner, Spoon (red/white) |
| Kesä | 1 to 3 m chart-limited; documented 2.5 to 6 m | dawn & dusk | Shallow bay flat (1 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 1 to 3 m chart-limited; documented 2 to 5.5 m | midday & dawn | Shallow bay flat (1 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1 to 3 m chart-limited; documented 1.5 to 4.5 m | midday | Shallow bay flat (1 m) | Tip-ups, Large jigging spoon |
Come spring, look for zander tight to the bank in 1 to 3 m. Through summer count on 1 to 3 m; the winter hold is 1 to 3 m. Start at Break off the point. It's a drop-off holding about 1.5 m of water and rates prime come fall. Prime time lands in the evening and early morning. A vertical softbait over humps or a deep crankbait is the honest summer answer here.
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 | 1 to 3 m chart-limited; documented 1 to 4.5 m | dusk & dawn | Main-lake point (1 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Kesä | 1 to 3 m chart-limited; documented 4.5 to 11 m | dusk & dawn | Break off the point (1.5 m) | Vertical softbait over humps, Deep crankbait |
| Syksy | 1 to 3 m chart-limited; documented 3.5 to 12 m | dusk & night | Break off the point (1.5 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Talvi | 1 to 3 m chart-limited; documented 6 to 12 m | dusk & dawn | Deep basin (3 m) | Vertical jig / mormyshka with bait, Slow blade bait |
In spring, lake whitefish run shallow here, mostly 1 to 3 m. Summer keeps them at 1 to 3 m, and they winter in 1 to 3 m. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 3 m. Fish it in early morning and you'll meet the bite. You won't need more than a blade bait vertical or a small jigging spoon 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.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 3 m chart-limited; documented 4.5 to 14 m | midday & dawn | Break off the point (1.5 m) | Small jig + waxworm, Blade bait (small) |
| Kesä | 1 to 3 m chart-limited; documented 12 to 27 m | dawn | Deep basin (3 m) | Blade bait vertical, Small jigging spoon |
| Syksy | 1 to 3 m chart-limited; documented 2.5 to 9 m | dusk | Break off the point (1.5 m) | Small spoon (gold), Jig + plastic larva |
| Talvi | 1 to 3 m chart-limited; documented 7.5 to 21 m | midday & dawn | Deep basin (3 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring burbot on Finnträsk hold shallow, usually 1 to 3 m. Depth-wise the year is flat: 1 to 3 m in summer, 1 to 3 m once it turns cold. Put Deep basin first on the milk run — a deep basin near 3 m that grades prime for spring. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
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 | 1 to 3 m chart-limited; documented 7.5 to 21 m | night & dusk | Deep basin (3 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Kesä | 1 to 3 m chart-limited; documented 15 to 37 m | night & midday | Deep basin (3 m) | Heavy jig + cut bait |
| Syksy | 1 to 3 m chart-limited; documented 9 to 24 m | night & dusk | Deep basin (3 m) | Glow spoon + minnow head, Blade bait (slow) |
| Talvi | 1 to 3 m chart-limited; documented 4.5 to 18 m | night & dusk | Deep basin (3 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Finnträsk carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 3 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 Finnträsk specifically, so confirm the current rules before you fish.
Check the official Finland fishing regulations →
Finnträsk is about 10 ft (3 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.
Finnträsk on syvimmillään noin 3 metriä (10 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Anglers target european perch, northern pike, zander, lake whitefish, burbot on Finnträsk. 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 3 ft of water that rates prime for european perch in spring. Open the map above to see every rated spot for each 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 Finnträsk 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.
Pentalanjärvi 6.4 km · Djupström 8 km · Loojärvi Låjärv 9.7 km · Juusjärvi 9.7 km · Lapinkylänjärvi Lappböleträsket 9.7 km · Helsinki-Porkkala - North West 11.3 km · Niittylampi Ängvik träsk 12.9 km · Tampaja 12.9 km · Särkijärvi 14.5 km · Haapajärvi 14.5 km · Hepari 14.5 km · Petäjärvi 14.5 km
See how Finnträsk stacks up: best zander lakes in Finland · best northern pike lakes in Finland · best european perch lakes in Finland · best lake whitefish lakes in Finland
More water nearby: Helsinki sub-region fishing maps (87 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.