Reference only — not for real-world navigation.
MT40
Horner Field · Great Falls
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
3,430 ft / 1,045 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
03/21 · 4,600 ft · GRAVEL-FUNLITFlight Planning
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Welcome to the technical flight briefing for Horner Field (MT40), located in Great Falls, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 1 active runway with a maximum elevation of 3,430 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Horner Field
ICAO / IATA
MT40 / —
Municipality
Great Falls
Country
Region
US-MT — Montana
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
3,430 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 03 / 21
UNLIT
Runway Length: 4,600 ft / 1,402 m
Runway Width: 60 ft / 18 m
Surface Type: GRAVEL-F
Heading: —° / —°
Runway Width: 60 ft / 18 m
Surface Type: GRAVEL-F
Heading: —° / —°
RWY 03
No ILS / Visual Only
RWY 21
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026