What's the feng shui of the house with the back of the mountain?

This is not a question of face, but a question of east, west, north and south. It's good to have near water in the south, distant mountains in the north, roads in the east and forgetfulness in the west. But I guess my personal opinion. Back mountain is better than back mountain (meaning back mountain), and back water (there is no way out at the last stop) is better than back water.