Reference only — not for real-world navigation.
K4N1
Greenwood Lake Airport · West Milford
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
791 ft / 241 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 122.90 MHz (CTAF)
Live Conversion
inHg
hPa
Runway Summary (Quick-Links)
06/24 · 3,470 ft · AsphaltLIGHTEDFlight Planning
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Welcome to the technical flight briefing for Greenwood Lake Airport (K4N1), located in West Milford, 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 791 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
Greenwood Lake Airport
ICAO / IATA
K4N1 / —
Municipality
West Milford
Country
Region
US-NJ — New Jersey
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
791 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 06 / 24
LIGHTED
Runway Length: 3,470 ft / 1,058 m
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 48° / 228°
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 48° / 228°
RWY 06 (48°)
No ILS / Visual Only
RWY 24 (228°)
No ILS / Visual Only
A/D NEW YORK APP/DEP
127.60 MHz
CTAF CTAF
122.90 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026