There is a rockery behind the house, but what word should be used to indicate that it is backed by a mountain?

The specific placement of rockery feng shui is as follows: 1. Rockery is placed in the west: it will be more auspicious if it can cooperate with trees and prevent the sun from being exposed. 2. The rockery is placed in the northwest: in the northwest, the rockery is set to Daji. The magnificent pattern should be accompanied by trees. 3. the rockery is placed in the northeast: in the northeast, it doesn't matter whether there is a rockery or not. This is the site of the core remains of this mountain. 4. Put the rockery in the north: It is auspicious to set the rockery in this direction. It doesn't matter if the terrain is higher. It is appropriate to cooperate with trees. Trees should not be too close to the house, let alone open the windows.