Recreational Master planning must combine a complete inventory and analysis of all natural and human resources which affect a site with current and potential future recreational uses to develop the most realistic plan. Natural resources must start from the geology and work upward through soils, hydrology, vegetation, animal life to climatic conditions. Human resources must look at how man has affected the site through past and current uses including utilities, existing facilities, visual inventory, surrounding land uses , and land ownership. Recreation uses must look at trends, regional recreation facilities, facilities operators, intensity of use, and how any additional facilities will affect the site and surrounding facilities. The Recreation Plan must remain flexible for changing recreation needs.