Øymarksjøen
| Øymarksjøen | |
|---|---|
| Location | Aremark, Marker (Østfold) |
| Coordinates | 59°22′20″N 11°39′35″E / 59.37222°N 11.65972°E |
| Basin countries | Norway |
| Surface area | 14.12 km2 (5.45 sq mi) |
| Max. depth | 37.6 m (123 ft) |
| Shore length1 | 66.18 km (41.12 mi) |
| Surface elevation | 109 m (358 ft) |
| References | NVE |
| 1 Shore length is not a well-defined measure. | |
Øymarksjøen is a lake in the municipalities of Aremark and Marker in Østfold county, Norway.