Reference only — not for real-world navigation.
CYAH
La Grande-4 Airport · La Grande-4
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
1,005 ft / 306 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
09/27 · 5,000 ft · GRAVELUNLITFlight Planning
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Welcome to the technical flight briefing for La Grande-4 Airport (CYAH), located in La Grande-4, Canada. 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 1,005 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
La Grande-4 Airport
ICAO / IATA
CYAH / YAH
Municipality
La Grande-4
Country
Region
CA-QC — Quebec
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
1,005 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 09 / 27
UNLIT
Runway Length: 5,000 ft / 1,524 m
Runway Width: 150 ft / 46 m
Surface Type: GRAVEL
Heading: —° / —°
Runway Width: 150 ft / 46 m
Surface Type: GRAVEL
Heading: —° / —°
RWY 09
No ILS / Visual Only
RWY 27
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026