A young couple moves to Alaska during the gold rush. They build a cabin and then he leaves to pan for gold. He was supposed to return in a month but doesn't. I think he fell in the river and died. She is left to survive on her own in the remote wilderness. Song "Comes a Time" by Niel Young was sung in it.

Silence of the North (1981) (http://www.imdb.com/title/tt0083079/)