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Rating depth structure for northern pike.
Recent public catches load as you reach this section.
94-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. Here is how the season plays out for each species, straight from the data behind the map.
Kartalla Iso-Öllöri kattaa 38 hehtaaria, rantaviivaa 4.5 km. Rantaviiva on kohtalaisen rikkonainen (indeksi 2.1). Noin 66% pinnasta on matalampaa kuin ~5 m — siellä ruokaketju elää. Päästä päähän vesi mittaa noin 1.6 km, leveimmillään 0.5 km. Vesi sijaitsee alueella Kehys-Kainuun seutukunta. Lähin kartoitettu vesi on Raippalampi, 1.6 km lounaaseen.
Ilmainen interaktiivinen kalastuskartta — Iso-Öllöri, 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.
Start shallow in spring: european perch sit in 1 to 3.5 m that time of year. Summer pushes them deeper, 2.5 to 8.5 m, and winter fish settle into 3.5 to 10 m. The spot to know is Shallow bay flat, a weed flat in about 1 m 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.
| 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 (10 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 3.5 to 10 m | midday & dawn | Deep basin (10 m) | Tungsten jig + maggots, Small balance jig |
The spring pattern is a shallow one: northern pike in 0.5 to 2.5 m. Midsummer fish sit out in 2.5 to 6 m before dropping to 1.5 to 4.5 m for winter. The spot to know is Shallow bay flat, a weed flat in about 1 m 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.
| 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 | Break off the point (6 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 2 to 5.5 m | midday & dawn | Back-bay flat (2 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1.5 to 4.5 m | midday | Back-bay flat (2 m) | Tip-ups, Large jigging spoon |
Spring lake whitefish on Iso-Öllöri hold shallow, usually 3 to 10 m. Depth-wise the year is flat: 3 to 10 m in summer, 3 to 10 m once it turns cold. Put Deep basin first on the milk run — a deep basin near 10 m 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.
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 (10 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 (10 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, burbot run shallow here, mostly 3 to 10 m. Summer keeps them at 3 to 10 m, and they winter in 2.5 to 10 m. Spring burbot concentrate at Deep basin, a prime-rated deep basin around 10 m. Fish it in after dark and midday and you'll meet the bite. 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.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 3 to 10 m chart-limited; documented 7.5 to 21 m | night & dusk | Deep basin (10 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 (10 m) | Heavy jig + cut bait |
| Syksy | 3 to 10 m chart-limited; documented 9 to 24 m | night & dusk | Deep basin (10 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 (10 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Iso-Öllöri carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 10 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 Iso-Öllöri specifically, so confirm the current rules before you fish.
Check the official Finland fishing regulations →
Iso-Öllöri 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.
Iso-Öllöri on syvimmillään noin 10 metriä (33 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Anglers target european perch, northern pike, lake whitefish, burbot on Iso-Öllöri. 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 interactive chart above rates every 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 Iso-Öllöri 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.
Raippalampi 1 mi · Pieni-Öllöri 1 mi · Ala-Karttimo 1 mi · Peuro 3 mi · Lintulampi 5 mi · Pieni Syrjäjärvi 5 mi · Liejulampi 5 mi · Syrjäjärvi 6 mi · Aholampi 7 mi · Pölylampi 7 mi · Pärsämönlampi (S) 7 mi · Pärsämönjärvi 8 mi
See how Iso-Öllöri 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.