The movie is about a group of friends that are traveling somewhere in the mountains, during the jurney one of them disappear and after that they getting troubles such as traps on the way and they suspecting that the guy who disappeared is the one who makes all the troubles. There is one scene where they crossing a river and someone's leg is caught by a trap. The movie is maybe from the 70s and I searching for it's title to download it from somewhere.

Kids in high school, jocks pick on nerd kid in science class, sabatoge him lab work it blows up, messes nerd up.. movie goes to future , nerd mails invitations to all that teased him, jocks, and girls, for a high school reunion to take place at old abanonded high school. They get there nerd is in side, kills them off one by one... he kills with an axe and is wearing a classman jacket and a jokers hats with bells on it... when he kills them he puts them in teachers lounge around table like conference can't remember title, but remember seeing it early mid 80's

Thanks but it's not the same movie.
The movie I am looking for is about a group of man, no any woman, they are traveling to the wilderness and one morning when they wake up, someone is missing and from that point the jurney becomes a nightmare, every time someone else is getting heart, die in a mysterious way or disappear until the last man survive and he continue the jurney looking to find the man who disappeared at the beginning which they were all suspected him as the one who made all the troubles for his own fun. There is a scene when the last survivour find a chair in a middle of nowhere and his dead friend was sitting on it. Another scece I remember is that he found a small house and perhaps the monster man who made all the troubles was getting out of the door and when he hold the handle, the last survivour shooting him and as a result his hand had been cut off.

I believe Cfyock's movie is Slaughter High. Unfortunately I don't know the one Talkor is asking about.