Montana airports

Bert Mooney (KBTM)

Non-towered public-use airport serving Butte, Montana, at 5,550 ft elevation.

Elevation5,550 ft
ControlNon-towered
Longest runway9,000 ft
Magnetic variation12° E
High elevation. At 5,550 ft, density altitude on a warm day can be thousands of feet higher. Check performance with the density altitude calculator.

On the field: flight training, aircraft rental, charter (as listed in FAA data). Find flight schools in Montana.

Live weather

Current conditions (METAR)
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Forecast (TAF)
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Frequencies

AWOS/ASOS135.175
CTAF123.0
UNICOM123.0

Runways

RunwaySizeSurfaceLights
15/339,000 × 150 ftAsphaltMedium intensity
12/305,100 × 75 ftAsphaltMedium intensity

Fuel: 100, 100LL, A. Sectional: Great Falls.

Runway diagram

15ᴿ331230N2,000 ft

Drawn to scale from FAA runway-end data, true north up. ᴿ = right-hand traffic pattern for runway 15. Not for navigation: use the official FAA airport diagram and Chart Supplement.

Nearby airports

Before you fly here

  • Read the FAA Chart Supplement entry for BTM: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
  • Check NOTAMs and get a weather briefing at 1800wxbrief.com.
  • Study the airport diagram and the sectional around KBTM for airspace and terrain.
  • More detail: AirNav · SkyVector

Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 2020. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.

All Montana airports