Reference only — not for real-world navigation.
1MI3
Black River Ranch Airport · Onaway
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
880 ft / 268 m
Transition Altitude
18,000 ft
Primary Channel
—
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
E/W · 3,900 ft · ASPHUNLITFlight Planning
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Welcome to the technical flight briefing for Black River Ranch Airport (1MI3), located in Onaway, 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 880 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
Black River Ranch Airport
ICAO / IATA
1MI3 / —
Municipality
Onaway
Country
Region
US-MI — Michigan
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
880 ft
Pilot Toolbox
External charts, live tracking and weather reports.
Runway E / W
UNLIT
Runway Length: 3,900 ft / 1,189 m
Runway Width: 60 ft / 18 m
Surface Type: ASPH
Heading: —° / —°
Runway Width: 60 ft / 18 m
Surface Type: ASPH
Heading: —° / —°
RWY E
No ILS / Visual Only
RWY W
No ILS / Visual Only
No frequency data available.
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026