The ranges that the Nellis pilots use and various other land areas used by various federal agencies , limit growth of the valley in terms of geographic area .
Nellis Air Force Base is located in the northeast corner of the valley .
The ranges that the Nellis Air Force Base pilots use and various other land areas used by various federal agencies , limit growth of the valley in terms of geographic area .
Nellis Air Force Base is located in the northeast corner of the valley .