I was poking around the internets and found that there are 4 Xterra trail runs scheduled for Utah in 2008.

XTERRA Wolf Mountain Trail Run 10k - Utah Series #1

XTERRA Snowbird Challenge Trail Run 8k - Utah Series #2

XTERRA Antelope Island Trail Run 12k - Utah Series #3

XTERRA Wheeler Canyon Xduro 21k 21k - Utah Series #4

Register here or visit xterratrailrun.com