M4 Strip Private
MT46 · East Helena, MT · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 08:04 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:39 AM | 12:39Z |
| Sunrise | 07:09 AM | 13:09Z |
| Sunset | 07:34 PM | 01:34Z |
| Evening civil twilight Loggable night begins | 08:04 PM | 02:04Z |
Plan a flight from MT46
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 10RIGHT trafficRP · charted
- Heading
- 107° true
- Dimensions
- 1,800 × 40 ft
- TPA
- 5,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Turf
Enter the right downwind (heading 287°) on the 45° at 5,200 ft MSL (≈1,000 AGL).
More details — RWY 10
- Threshold elev
- 4,122 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 10/28 | 1,800 ft |
Prefer one flat page? Full runway details for MT46 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the MT46 kneeboard →
Comms & NavAids
Nearby navigation aids
HLN 117.70
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HLN · Helena | VORTAC | 117.70 · 124X | High | r132° / 4.4 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for MT46 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- MT46
- Coordinates
- 46.5473, -111.8897
- Elevation
- 4,164 ft MSL
- Sectional chart
- GREAT FALLS
- Airport use
- Private
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- Segmented circle
- No
- Activated
- 2020/09
- Distance from city
- 3 SSE
Ownership & management 2 contacts
Remarks FAA · 1 notes
Contact
- RMARONICK@GMAIL.COM
Nearby airports
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Also nearby: MT63 Dog Leg (private) (5 NM) · 39MT Flying E Ranch (private) (9 NM) · MT15 Fort Harrison AAF (private) (10 NM) · MT06 Duncan (private) (12 NM) · 40MT Silver Creek (private) (12 NM)
About MT46
M4 Strip (MT46) is an airport in East Helena, MT, at 4,164 ft MSL. It has 1 runway, the longest 1,800 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for MT46, refreshed from the Aviation Weather Center and FAA NASR.
Does MT46 have a control tower?
No. M4 Strip is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at MT46?
M4 Strip has 1 runway; the longest is 1,800 ft. See the Runways section for headings, surface, and lighting.
Where is MT46?
M4 Strip is in East Helena, MT, at an elevation of 4,164 ft MSL. Coordinates: 46.5473, -111.8897.
More about MT46
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 MT46 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.