Michael Army Airfield is a military airport located within Dugway Proving Ground, Utah. It is owned and operated by the US Army. Similar to its secluded and distant location, Michael AAF is mysterious. Much of its missions are undisclosed. I came across this Reaper UAV unintentionally when I was looking around Dugway Proving Ground, and I cannot confidently say who operates it given the lack of information about the facility online.
Airplanes - Military, Airplanes - Military - Parked - Attack
Links: www.bing.com, en.wikipedia.org