1
Runway
2
Frequencies
4
Procedures
1
NOTAM
Quick Facts
ICAO
K4N1
FAA
4N1
Elevation
791 ft MSL
Runways
1
Frequencies
2
Tower
No
Fuel
100LL,A
Coordinates
41.128, -74.347
Airport Information
Facility Type
AIRPORT
Elevation
791 ft MSL
Control Tower
No
Fuel Types
100LL,A
ARTCC
NEW YORK
Coordinates
41.1282, -74.3467
Ownership
Public
Hours of Operation
Current Weather
METAR KCDW 132053Z 22010G21KT 190V260 10SM BKN080 OVC100 22/04 A2980 RMK AO2 SLP098 T02220044 56020
Flight Category
VFR
Wind
220° at 10 kt G21
Visibility
10+ SM
Temperature
22.2°C
Dewpoint
4.4°C
Altimeter
1009.20 inHg
Cloud Cover
OVC
Nearest weather from KCDW (16 NM away)
Observed 2026-05-13 20:53Z
Nearby Weather Cameras
No camera at K4N1. Showing nearest cameras.
Teterboro Airport
South · Camera 3 · 4 cameras total
24 NM away
Nyack
North · Camera 1 · 4 cameras total
25 NM away
12 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 06/24 | 3,471 ft | 60 ft | ASP | - |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| A/D | 127.6 | NEW YORK APP/DEP |
| CTAF | 122.9 | CTAF |
Active NOTAMs
4N1 26/045
2026-05-06 16:32 – 2026-06-20 16:32
IFR Procedures
2 Runway, 2 Approaches
Nearby Airports in New Jersey
12N
AEROFLEX/ANDOVER
ANDOVER — 582.7 ft
K12N
Aeroflex-Andover Airport
Andover — 583 ft
JY07
Air-List-Ads Airport
Stewartsville — 360 ft
N85
ALEXANDRIA
PITTSTOWN — 480 ft
KN85
Alexandria Field Airport
Pittstown — 480 ft
3NJ9
Allen Airstrip
Vincentown — 51 ft
3NJ9
ALLEN AIRSTRIP
VINCENTOWN — 51 ft
23NJ
ALLIANCE
PITTSGROVE — 110 ft
Nearest airports
- 12N — AEROFLEX/ANDOVER
ANDOVER
- K12N — Aeroflex-Andover Airport
Andover
- JY07 — Air-List-Ads Airport
Stewartsville
- N85 — ALEXANDRIA
PITTSTOWN
- KN85 — Alexandria Field Airport
Pittstown
New Jersey airports
K4N1 Operational Overview
Location & Facility
Greenwood Lake Airport (K4N1) is a publicly owned airport open to the public located in West Milford, New Jersey, United States. The field sits at an elevation of 791 feet above mean sea level (MSL) at coordinates 41.1282°N, 74.3467°W.
Runways
Greenwood Lake Airport has 1 runway. The longest runway (06/24) measures 3,471 feet by 60 feet with a asp surface.
Communications & Operations
Greenwood Lake Airport is a non-towered (pilot-controlled) field. A total of 2 communication frequencies are published for this facility.
Services & Fuel
Greenwood Lake Airport offers 100LL,A fuel. Pilots planning fuel stops should confirm availability with the FBO, as hours and pricing may vary.
Instrument Procedures
Greenwood Lake Airport has 4 published instrument flight procedures, including 2 approaches. These procedures are updated on the 28-day AIRAC cycle. Sign up for AeroCopilot to view full procedure charts with waypoint maps and altitude profiles.
Weather Cameras
3 FAA Weather Cameras are available near Greenwood Lake Airport, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at Greenwood Lake Airport is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations. There is currently 1 active NOTAM for this facility.
Frequently Asked Questions
What is K4N1?
K4N1 is the ICAO identifier for Greenwood Lake Airport, a public-use airport located in West Milford, New Jersey, United States.
How many runways does Greenwood Lake Airport have?
Greenwood Lake Airport (K4N1) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of K4N1?
The field elevation of Greenwood Lake Airport is 791 feet above mean sea level (MSL).
Is fuel available at K4N1?
Yes, Greenwood Lake Airport offers 100LL,A fuel.
What are the current weather conditions at K4N1?
The current flight category at Greenwood Lake Airport is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at K4N1?
There are currently 1 active NOTAM for Greenwood Lake Airport. Sign up for AeroCopilot to read decoded NOTAM text and AI interpretations.
How do I access complete data for K4N1?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for Greenwood Lake Airport.
Where is Greenwood Lake Airport located?
Greenwood Lake Airport (K4N1) is located in West Milford, New Jersey, United States, at an elevation of 791 ft MSL.
Does K4N1 have weather cameras?
K4N1 does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.