Roundup Airport
RPX · KRPX · Roundup, Montana · Musselshell County · map
Roundup Airport is a public-use airport owned by Roundup & Musselshell County, 2 miles north of Roundup, Montana, 3,490 feet above sea level. It has 2 runways; the longest, 07/25, is 5,099 feet of asphalt. It has fuel (100LL avgas, Jet A-1).
The airport
- Codes
- FAA RPX · ICAO KRPX
- Kind
- Airport · open to the public · publicly owned
- Owner
- Roundup & Musselshell County
- Elevation
- 3,490 feet above sea level
- Control tower
- No control tower
- Attended
- unattended
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel
- 100LL avgas, Jet A-1
- Repairs
- airframe: major repairs; engine: major repairs
- Parking
- hangar, tiedown
- On the chart
- Billings sectional
- Magnetic variation
- 11E
- In the FAA's files since
- April 1940
Runways 2
Drawn to scale from the FAA's runway positions, north up. Not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 07/25 | 5,099 × 75 ft | Asphalt, excellent | Medium-intensity lights |
| 16/34 | 2,460 × 100 ft | Grass, good |
- Runway 07: PAPI, two lights on the left, gnd 17 ft high 700 ft from the end
- Runway 25: PAPI, two lights on the left
Radio frequencies
| Common traffic advisory (CTAF) · UNICOM | 122.8 | |
| Miles City Center (remote transmitter) Low | 126.85 |
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Roundup from the FAA register
11 aircraft are registered to owners in Roundup, Montana: 8 piston singles, 3 piston twins. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Individuals are counted, never named. All aircraft registered in Montana.
Accidents and incidents at or near this airport NTSB records · 5 since 1982, 0 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- Activate medium-intensity runway lights runway 07/25 and PAPI runway 07 and runway 25 - 122.7.
- Ultralights on and in the vicinity of airport.
- Credit card self service fuel available 24/7.
- Runway 25 right traffic from 2200 to 0700.
- Runway 16/34 marked with white cones full length; red cones mark threshold.
- Wildlife on and in the vicinity of airport.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.