ROUNDUP, MT · 3 FAA charts · cycle 6 Aug 2026
2 published instrument approaches: 2 RNAV (GPS), serving 2 runway ends.
| Chart | Amendment | ||
|---|---|---|---|
 | RNAV (GPS) RWY 07 | 0B | |
 | RNAV (GPS) RWY 25 | 0C |
| Chart | Amendment | ||
|---|---|---|---|
 | TAKEOFF MINIMUMS | — |
Minimums pages cover a whole volume, so the same document is shared by every airport in it.
From the FAA NASR 28-day subscription, cycle 6 Aug 2026.
| Service | Frequency | Call sign |
|---|---|---|
| CTAF | 122.8 |
Civil VHF frequencies from the FAA NASR 28-day subscription. Discrete sector and military frequencies are not listed.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 07/25 | 5,099 ft | 75 ft | Asphalt Excellent | Medium intensity |
| 07 78°T | PAPI (2-box) 4° | |||
| 25 258°T | PAPI (2-box) 3° | |||
| 16/34 | 2,460 ft | 100 ft | Grass Good | |
Runway and approach-aid data from the FAA NASR 28-day subscription.
46.4750000, -108.5434170
3,490 ft2 nm NPaste the coordinates into a simulator’s world map to drop straight onto the field.
Published verbatim from the FAA NASR subscription. Abbreviations are the FAA's own.
Roundup’s compact instrument set is evenly shaped: two RNAV (GPS) approaches serve two runway ends rather than concentrating access on a single direction. There is no published airport diagram, so the procedure collection remains limited to approaches and minimums information.
The 5,099 ft asphalt runway provides more than twice the length of the 2,460 ft turf runway; the shorter strip adds another alignment but does not match the longer runway’s dimensional provision. Nearby Billings Logan International has substantially broader chart coverage, while Laurel Municipal and Lewistown Municipal sit between that larger collection and the three-chart sets at Roundup, Wheatland County at Harlowton and Big Horn County. The Billings and Great Falls sectionals add wider VFR context beyond these terminal procedures.
| ID | Airport | City | Distance | Charts |
|---|---|---|---|---|
| KBIL | Billings Logan Intl | BILLINGS, MT | 40 nm S | 19 |
| 6S8 | Laurel Muni | LAUREL, MT | 47 nm S | 6 |
| KLWT | Lewistown Muni | LEWISTOWN, MT | 51 nm NW | 5 |
| KHWQ | Wheatland County At Harlowton | HARLOWTON, MT | 54 nm W | 3 |
| 00U | Big Horn County | HARDIN, MT | 57 nm SE | 3 |
3 current FAA charts for Roundup, including 2 instrument approachs. All are free to download as PDFs from this page, from the 6 August 2026 cycle.
CTAF 122.8. Full civil VHF list, with sector notes, is in the frequencies table on this page — from the FAA NASR subscription.
Roundup has 2 runways. The longest is 07/25 at 5,099 ft by 75 ft, asphalt. Full runway dimensions, lighting and approach aids are listed on this page.
No ILS is published. In total KRPX has 2 published instrument approaches, of which 2 are RNAV (GPS).
No — Roundup has no control tower. Traffic co-ordinates on a common frequency rather than with a controller, which is listed in the frequencies table on this page.
They are from the FAA cycle effective 6 August 2026, which is superseded on 3 September 2026. We publish each new cycle on its effective date. They are for flight simulation and reference only — not for real-world navigation.
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