Colo. Rev. Stat. § 30-28-107
In the preparation of a county or regional master plan, a county or regional planning commission shall make careful and comprehensive surveys and studies of the existing conditions and probable future growth of the territory within its jurisdiction. The county or regional master plan shall be made with the general purpose of guiding and accomplishing a coordinated, adjusted, and harmonious development of the county or region which, in accordance with present and future needs and resources, will best promote the health, safety, morals, order, convenience, prosperity, or general welfare of the inhabitants, as well as efficiency and economy in the process of development, including such distribution of population and of the uses of land for urbanization, trade, industry, habitation, recreation, agriculture, forestry, and other purposes as will tend to create conditions favorable to health, safety, energy conservation, transportation, prosperity, civic activities, and recreational, educational, and cultural opportunities; will tend to reduce the wastes of physical, financial, or human resources which result from either excessive congestion or excessive scattering of population; and will tend toward an efficient and economic utilization, conservation, and production of the supply of food and water and of drainage, sanitary, and other facilities and resources.
C.R.S. § 30-28-107