Roundup Airport (RPX)

RPX
Roundup Airport (RPX)
Roundup, MT
Location & QuickFacts
FAA Information Effective 2026-07-09
Airport Identifier RPX
Airport Status Operational
Longitude/Latitude 108°32'36.3000" W / 46°28'30.0000" N
-108.543417 / 46.475000 (Estimated)
Elevation 3490.30 ft / 1063.84 m (Surveyed)
Land 367 acres
From nearest city 2 nautical miles N of Roundup, MT
Location Musselshell County, MT
Magnetic Variation 11E (2015)
Owner & Manager
Ownership Publicly owned
Owner ROUNDUP & MUSSELSHELL COUNTY
Address 506 MAIN ST
ROUNDUP, MT 59072
Phone number 406-323-1104
Manager KELLY GEBHARDT
Address 20 SKYLINE DRIVE
ROUNDUP, MT 59072
Phone number 406-323-1564
Airport Operations and Facilities
Airport Use Open to public
Wind indicator Yes
Segmented Circle Yes
Control Tower NON-ATCT
Lighting Schedule SEE RMK
Beacon Color White-Green (lighted land airport)
Landing fee charge No
Sectional chart BILLINGS
Region ANM - Northwest Mountain
Responsible ARTCC ZLC - SALT LAKE CITY
Tie-in FSS GTF - GREAT FALLS
FSS on Airport No
FSS Toll Free 1-800-WX-BRIEF
NOTAMs Facility GTF (NOTAM-d service available)
Airport Communications
CTAF 122.8 MHz
UNICOM 122.8 MHz
Airport Services
Fuel types 100LL,A1
Airframe repair MAJOR
Power plant repair MAJOR
Bottled oxygen NONE
Bulk oxygen NONE
Transient storage Hangar, Tiedown
Other services AGRI,CHTR,INSTR,PAJA,RNTL,SURV
Runway Information
Runway 07/25
Dimensions 5099 x 75 ft (1554 x 23 m)
Surface ASPH (EXCELLENT)
Surface treatment
Edge lights Medium
07 25
Alignment 78° 258°
Physical elevation 3490.30 ft 3430.80 ft
Coordinates 46.473602 / -108.551362 46.476569 / -108.531591
Traffic pattern Left Left
Runway marking Non-precision instrument , Good Condition Non-precision instrument , Good Condition
VGSI 2-light PAPI on left 2-light PAPI on left
Runway 16/34
Dimensions 2460 x 100 ft (750 x 30 m)
Surface TURF (GOOD)
Surface treatment
16 34
Alignment 168° 348°
Physical elevation 3462.20 ft 3482.30 ft
Coordinates 46.478115 / -108.548417 46.471526 / -108.546341
Traffic pattern Left Left
Remarks
  • PHONE ON FLD.
  • WILDLIFE ON & INVOF ARPT.
  • FOR CD CTC BILLINGS APCH AT 406-255-2798.