Reference only — not for real-world navigation.
Z91
Birch Creek Airport · Birch Creek
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
450 ft / 137 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
16/34 · 4,000 ft · GRAVEL-GLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Birch Creek Airport (Z91), located in Birch Creek, 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 450 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
Birch Creek Airport
ICAO / IATA
Z91 / KBC
Municipality
Birch Creek
Country
Region
US-AK — Alaska
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
450 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 16 / 34
LIGHTED
Runway Length: 4,000 ft / 1,219 m
Runway Width: 75 ft / 23 m
Surface Type: GRAVEL-G
Heading: —° / —°
Runway Width: 75 ft / 23 m
Surface Type: GRAVEL-G
Heading: —° / —°
RWY 16
No ILS / Visual Only
RWY 34
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026