Airport information
- FAA LID
- MT45
- Coordinates
- 45.9089, -104.5760
- Elevation
- 3,373 ft MSL
- Magnetic variation
- 12E
- Sectional chart
- BILLINGS
- 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
- 1983/05
- Distance from city
- 2 NW
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 | 04:29 AM | 10:29Z |
| Sunrise | 05:08 AM | 11:08Z |
| Sunset | 08:52 PM | 02:52Z |
| Evening civil twilight Loggable night begins | 09:31 PM | 03:31Z |
Plan a flight from MT45
Traffic pattern
- Landing
- Rwy 11
- Pattern
- left (turns left)
- TPA
- 4,400 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 11 at 4,400 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 11/29
1,100 ft × 40 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 100 ft, 2,200 ft from threshold
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Fence, 4 ft, 100 ft from threshold
| Runway | Length | Your margin |
|---|---|---|
| 11/29 | 1,100 ft |
No published frequencies, ILS, or nearby navaids for MT45.
VFR sectional
No published instrument procedures or Chart Supplement for MT45. VFR sectional link above.
Services
- Fuel available
- 100
Ownership & management
Remarks FAA
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- 4' FENCE 100 FEET FROM RWY.
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 MT45 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 MT45
Castleberry Airport (MT45) is an airport in Ekalaka, MT, at 3,373 ft MSL. It has 1 runway, the longest 1,100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for MT45, refreshed from the Aviation Weather Center and FAA NASR.
Does MT45 have a control tower?
No. Castleberry Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at MT45?
Castleberry Airport has 1 runway; the longest is 1,100 ft. See the Runways tab for headings, surface, and lighting.
Where is MT45?
Castleberry Airport is in Ekalaka, MT, at an elevation of 3,373 ft MSL. Coordinates: 45.9089, -104.5760.
Fly out of MT45 often?
Save MT45 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.