Airport information
- FAA LID
- M46
- Coordinates
- 45.8529, -106.7090
- Elevation
- 3,426 ft MSL
- Magnetic variation
- 13E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- ON CALL
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1990/11
- Distance from city
- 3 SW
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:38 AM | 10:38Z |
| Sunrise | 05:16 AM | 11:16Z |
| Sunset | 09:00 PM | 03:00Z |
| Evening civil twilight Loggable night begins | 09:39 PM | 03:39Z |
Loggable night (§1.1)
09:39 PM → 04:38 AM
Night currency (§61.57)
10:00 PM → 04:16 AM
Plan a flight from M46
Runway 06/24
5,100 ft × 75 ft · Asphalt (Good) 06
- Heading
- 062° mag · 75° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
24
- Heading
- 242° mag · 255° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CNTR | 127.75 | SALT LAKE CNTR |
| CTAF | 122.9 |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Parking
- tiedowns
Ownership & management
Owner
COUNTY OF ROSEBUD
PO BOX 47, FORSYTH, MT
406-346-2251
Manager
BRIAN SCHWEND
PO BOX 45, FORSYTH, MT
406-351-1261
Remarks FAA
- HILL 1550' FM RY 24 END 600' LEFT & 93' ABOVE RY THR.
- 700 FT POWER PLANT STACKS 4.5 NM NE OF ARPT.
- PHONE AVAIL ON ARPT.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -34C.
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT PAPI 06 & 24 - CTAF; MIRL RWY 06/24 PRESET LOW INTST DUSK-0100; AFT 0100 ACTVT - CTAF.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open M46 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.