I have lived in Eastern Washington my whole life, bears most likely won’t but a mountain lion will. I have know two people where I lived that have died from them. Granted that is not a lot but they are seen almost every couple months or so. Not all of Eastern Washington is the same.

It is very dangerous. I live in the woods and mountain lions have been spotted and so have bear. Also, most people just get lost or hurt themselves on the terrain and never found. I would not hike in the area unless you are familiar with it.