For the use of Active, National Guard, Reservists, Retired, 100% DAV. DoD Civilians Open year round. The guest is responsible for ensuring the water line does not freeze.Reservations Please call the Billeting Office (406-324-3355) to make a reservation. This is the ONLY way you can get your key after the office is closed Internet Available in the dayroom of Bldg 1011.The Billeting Office(Bldg. 1011) is open 7 days a week. Mon-Thurs and Sat 7-5. Fri 7-10pm and Sun 6-4.(Closed on Federal Holidays) With a reservation you can get your keys after the office is closed. Let the gate guard know you have an RV spot reserved and he will tell you how to get your key