Airport information
- FAA LID
- MT06
- Coordinates
- 46.5705, -112.1753
- Elevation
- 4,260 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- GREAT FALLS
- Airport use
- Private
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1989/11
- Distance from city
- 6 W
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:56 AM | 10:56Z |
| Sunrise | 05:35 AM | 11:35Z |
| Sunset | 09:26 PM | 03:26Z |
| Evening civil twilight Loggable night begins | 10:05 PM | 04:05Z |
Plan a flight from MT06
Traffic pattern
- Landing
- Rwy 07
- Pattern
- left (turns left)
- TPA
- 5,300 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 07 at 5,300 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 07/25
1,467 ft × 50 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 07/25 | 1,467 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| HLN · Helena | VORTAC | 117.70 | r241° / 9.4 NM |
VFR sectional
No published instrument procedures or Chart Supplement for MT06. VFR sectional link above.
Ownership & management
Remarks FAA
- FOR CD CTC HELENA APCH AT 406-449-5756/5761, WHEN APCH CLSD CTC SALT LAKE ARTCC AT 801-320-2568.
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 MT06 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.
About MT06
Duncan Airport (MT06) is an airport in Helena, MT, at 4,260 ft MSL. It has 1 runway, the longest 1,467 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for MT06, refreshed from the Aviation Weather Center and FAA NASR.
Does MT06 have a control tower?
No. Duncan Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at MT06?
Duncan Airport has 1 runway; the longest is 1,467 ft. See the Runways tab for headings, surface, and lighting.
Where is MT06?
Duncan Airport is in Helena, MT, at an elevation of 4,260 ft MSL. Coordinates: 46.5705, -112.1753.
Fly out of MT06 often?
Save MT06 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.