Colstrip
M46 · Colstrip, MT · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-11-02 · night begins 05:23 PM
| Event | Local (MST) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:17 AM | 13:17Z |
| Sunrise | 06:48 AM | 13:48Z |
| Sunset | 04:52 PM | 23:52Z |
| Evening civil twilight Loggable night begins | 05:23 PM | 00:23Z |
Plan a flight from M46
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
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Runways
RWY 24LEFT traffic
- Heading
- 242° mag · 255° true
- Dimensions
- 5,100 × 75 ft
- TPA
- 4,400 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (3°)
- CTAF
- 122.7
Enter the left downwind (heading 062°) on the 45° at 4,400 ft MSL (≈1,000 AGL).
More details — RWY 24
- Threshold elev
- 3,383 ft
- Markings
- nonprecision
- Threshold crossing height
- 24 ft
- TDZ elevation
- 3,412 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 5,100 ft |
Prefer one flat page? Full runway details for M46 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the M46 kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Also
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 305.2 | MILES CITY RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Prefer one flat list? All M46 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- M46
- Coordinates
- 45.8528, -106.7093
- Elevation
- 3,428 ft MSL
- Magnetic variation
- 13E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3PT · 118.525 · ☎ 406-748-3849
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- 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
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT PAPI 06 & 24 - CTAF; MIRL RWY 06/24 PRESET LOW INTST DUSK-0100; AFT 0100 ACTVT - CTAF. on 122.7 — Chart Supplement ↗
Runway lighting aids — 06: 2-light PAPI (left) · 24: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Parking
- tiedowns
Ownership & management 2 contacts
Remarks FAA · 6 notes
General
- 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.
Lighting
- ACTVT PAPI 06 & 24 - CTAF; MIRL RWY 06/24 PRESET LOW INTST DUSK-0100; AFT 0100 ACTVT - CTAF.
Nearby airports
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Also nearby: 3U4 St Labre Mission (23 NM) · 1S3 Tillitt Field (25 NM) · 6U7 Hysham (33 NM) · 00U Big Horn County (40 NM) · 1M6 Stevens Ranch (41 NM)
About M46
Colstrip (M46) is an airport in Colstrip, MT, at 3,428 ft MSL. It has 1 runway, the longest 5,100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for M46, refreshed from the Aviation Weather Center and FAA NASR.
Does M46 have a control tower?
No. Colstrip is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at M46?
Colstrip has 1 runway; the longest is 5,100 ft. See the Runways section for headings, surface, and lighting.
Where is M46?
Colstrip is in Colstrip, MT, at an elevation of 3,428 ft MSL. Coordinates: 45.8528, -106.7093.
More about M46
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. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.