Today's golf course planners employ a hybrid of CAD and GIS to merge artistic design with outside accuracy. GIS allows the golf planner to synthesize information on terrain, elevation, ground cover, and drainage, which is necessary for planning sustainability considerations in site planning. After GIS has procured this necessary information, the planners then zone the area and begin drafting in CAD drafts of site layouts, grading plans, irrigation plans, and course aesthetic features. Both GIS and CAD complement each other--GIS provides real-world accuracy while CAD refines construction details and issues. The combination provides planners a hybrid experience in planning for quantities for cut slopes and fill slopes, provides efficient drainage plans, designs sites through CAD's modeling capabilities, and offers 3D models of proposed sites, helping for streamline planning to execution.