| Isteren | |
| Pushpin Map: | Innlandet#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 61.9667°N 59°W |
| Location: | Engerdal Municipality, Innlandet |
| Basin Countries: | Norway |
| Area: | 29.026km2 |
| Reference: | NVE[1] |
Isteren is a lake in Engerdal Municipality in Innlandet county, Norway. The 29km2 lake lies to the southwest of the large lake Femund and about northwest of the village of Drevsjø.
Isteren is a nutritious lake with a large diversity of species.[2] It is a popular fishing area, and the chances for the good catch is certainly present. In the summer of 2006, a trout weighing was caught with a rod from a small boat. It is also rich in whitefish, pike, perch, grayling, burbot and herring.[3] Around the lake there are two fish mounds and some single cabins.[2]
The river Sømåa, originating from lake Langsjøen, flows into Isteren from the north. It is a river with a rich bird life, especially in the spring. Here one can observe rare species of migrating birds.