West Milford, New Jersey
4N1 Greenwood Lake
Greenwood Lake (4N1) is a non-towered, public-use airport in West Milford, New Jersey, at 789.6 ft MSL. Its runway is 06/24 (3,471 by 60 ft, asphalt). Right traffic for runway 06. CTAF 122.9.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA 4N1
- Location
- West Milford, New Jersey (Passaic County). 1 NM E of the city center
- Elevation
- 789.6 ft MSL
- Position
- 41.1284° N, 74.3465° W
- Control tower
- No, non-towered
- Sectional chart
- New York
- Magnetic variation
- 13° W (1995)
- Fuel
- 100LL, Jet A
- Ownership
- Publicly owned, open to the public
- Attendance
- Daily 0800-1700
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 06/24 | 3,471 × 60 ft | Asphalt, excellent condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 06 | Right traffic | None listed | None listed | None listed | Not listed |
| 24 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
- Approach / departure
- 127.6
- "Newark"
Before you go
Brief 4N1 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Greenwood Lake, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.