| Nilakka | |
| Location: | Northern Savonia |
| Coords: | 63.0833°N 57°W |
| Type: | Lake |
| Pushpin Map: | Finland |
| Inflow: | Säviänvirta |
| Outflow: | Äyskoski rapids, lake Iisvesi |
| Catchment: | Kymijoki |
| Basin Countries: | Finland |
| Length: | over 40km (30miles) |
| Width: | max 10km (10miles) |
| Area: | 168.51km2 |
| Depth: | 4.86m (15.94feet) |
| Max-Depth: | 21.74m (71.33feet) |
| Volume: | 0.821km3 |
| Shore: | 357.81km (222.33miles) |
| Elevation: | 102.2m (335.3feet) |
| Islands: | 150 |
| Cities: | Keitele |
| Reference: | [1] |
Nilakka is a rather large lake in Northern Savonia, Finland. With the area of nearly 169 km2 it is the 25th largest lake in the country.[2] It's a shallow lake, connected by canals to upper Lake Pielavesi and lower Iisvesi.