The part of the RMOC not intended for urban development It contains a number of important natural resources and is characterised by the dominance of the natural rather than the built environment and the relatively low density of development
That portion of Prince William County which contains agricultural, open space, forestry and large-lot residential land uses, as well as occasional small-scale convenience retail centers and community facilities It is intended that the Rural Area be served by public water facilities but not by public sewer facilities, except under emergency conditions as identified in the Sewer Plan
Geographical area with a population of less than 2,500 people per unit of area The number of people used in this definition may vary in different countries (Millar, 1994)