Jäviönjoki

Jäviönjoki is a river located in the Kainuu region of Finland. It flows through the municipalities of Suomussalmi and Puolanka. The river's source is in the vicinity of Jäviöjärvi, a lake in Suomussalmi, and it ultimately discharges into the Iso-Kirjanes, which is part of the Oulujoki river system. The total length of Jäviönjoki is approximately 30 kilometers.

The river's landscape is characterized by boreal forests and a relatively gentle topography typical of eastern Finland. The immediate surroundings of Jäviönjoki are sparsely populated, with scattered settlements and agricultural lands. The river is not a major waterway for navigation but serves as an important element of the local ecosystem and natural drainage.

The water quality of Jäviönjoki is generally considered good, reflecting the pristine nature of the surrounding wilderness. It supports a variety of fish species, contributing to local angling opportunities. The river's flow can vary depending on seasonal precipitation and snowmelt, with higher water levels typically occurring in the spring. Jäviönjoki plays a role in the hydrological cycle of the region, contributing to the larger Oulujoki basin. The area around the river is also used for recreational activities such as hiking and fishing.