In areas such as ridges, hilltops, properties zoned W or SOS, and other scenic areas, development shall ensure adequate mitigation for protection and/or preservation of the scenic resources. Development shall be encouraged to use the form of the land and vegetation to ensure separation of building areas and minimal exposure from roads or other building areas. The use of plantings, generally trees, consistent and compatible with those of the area may be required to mitigate the extent of exposure of the development area in conjunction with land forms, existing vegetation and other features. Screening required for shielding of development areas, not necessarily the immediate house site, shall consist of natural materials of the area, preferably using natural vegetation or land form modification to conform to the natural terrain.