I know this probably belongs in the entertainment section but I know it will get more exposure in here.

I want the name of a movie made I want to say in the 70s.

It is a documentary about a guy that moves to Alaska, buys a plot of land next to a lake, builds a house and basically lives there.

I saw it on PBS a few years ago and it was one of the coolest things I have ever seen.

Thanks for your help.