Does anyone know the title of the movie about a family that moved from the city to the wilderness?

I remember watching it as a child. A mother, father, son and daughter give up city life and start with nothing in the wilderness, I think in Alaska. I believe the movie came out in the 70's.Does anyone know the title of the movie about a family that moved from the city to the wilderness?
The Adventures of the Wilderness Family (1975)



http://www.imdb.com/title/tt0072610/



There were a few of these...



The Further Adventures of the Wilderness Family (1978)



http://www.imdb.com/title/tt0077587/Does anyone know the title of the movie about a family that moved from the city to the wilderness?
last house on the left?