The discovery of a body in a Kelso campsite set off an investigation after authorities labeled the death suspicious.
The man's body has not yet been identified, nor a cause of death established.
Cowlitz County Sheriff Mark Nelson says in a press release that elements of the scene discovered Friday make the death appear suspicious. The campsite was otherwise unoccupied.
The campsite is on the east bank of the Cowlitz River in the Cowlitz Gardens area of North Kelso.