Downstream of Suanto, the river splits once again, and if you follow the eastern course (through a path going into the woods), you will come to Mustakuoppa. This pool is not particularly well known, but should definitely be tried if you're in the area.

This picture shows Mustakuoppa, and as you can see, it's a nice little pool. Focus on casting your fly towards the opposite bank, fishing the edge of the current towards the opposite bank. Mustakuoppa is found by clicking here.