Utah State University Extension
As Utah’s population grows, development merges the edges of cities and towns into wildlands. New developments also spring up within wildlands, including everything from a cabin in the woods to hundreds of vacation homes on slopes scattered through the forest. These areas are called the wildland-urban interface (WUI), where the places we live and play meet the wilds.
Kuhns, Michael R., "Firewise Landscaping for Utah" (2012). All Current Publications. Paper 1184.