Description: Dataset of polygons representing the 2009 designated Wildland Urban Interface. These areas require the additional approval of the County Fire Marshall. The boundaries were determined by the County Fire Warden with assistance from the Mapping Division. All boundaries where determined by on-screen digitizing using parcels, survey lines and aerial photos. The final boundary was approved by the Utah County Commission. The criteria for designation as WUI was determined to be areas where human development, structures and infra-structure meet wildland vegetation, and are in need of additional fire protection due to steep slopes, limited water supply, and extended response times by fire suppression resources. The 2009 Utah County WUI map has been expanded from the 1994 map, to include newly developed and potential development areas. Newly incorporated areas that are now under city jurisdiction, and formerly WUI designated (1994) areas within city jurisdiction have been excluded from the county WUI designation. All lands east of the Wasatch Front including Forest Service, BLM, State, & privately held land kept the WUI designation as established on the 1994 map. This area is in the counties watershed. All Federal lands, (except Camp Williams, DOD), Forest Service, Bureau of Land Management, and State lands have been designated as WUI as they border potential development. Other boundary lines were established where linear obstacles restrict fire department access, such as canals along the Wasatch Front and around West Mtn., and the underground pipeline through the west desert. Cultivated land has generally not been included as WUI. Where possible easily recognizable ground features, such as roads, were used as boundary lines. Where possible private land parcels were not divided. Township section lines were used where none of the above stated criteria could be applied.