The Mountain Home Range Complex comprises 7,400 square miles of associated airspace and 122,000 acres of land space used for two air-to-ground training ranges, five no-drop target complexes and 30 multi-size electronic combat sites.

The primary air-to-ground training ranges are Saylor Creek Range, located 12 miles east of Bruneau, Idaho, and Juniper Butte Range, located 37 miles southeast of Bruneau, Idaho. Saylor Creek Range was established in 1954 and Juniper Butte Range was established in 1998. The training range's impact areas consist of approximately 24,000 acres of exclusive use area land.