Rock, Michigan
6Y4 Van Effen Fld
Van Effen Fld (6Y4) is a non-towered, public-use airport in Rock, Michigan, at 970 ft MSL. Its runway is 12/30 (2,600 by 100 ft, turf). 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 6Y4
- Location
- Rock, Michigan (Marquette County). 4 NM SW of the city center
- Elevation
- 970 ft MSL
- Position
- 46.0521° N, 87.2583° W
- Control tower
- No, non-towered
- Sectional chart
- Green Bay
- Ownership
- Privately owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 12/30 | 2,600 × 100 ft | Turf, fair condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 12 | Not stated | None listed | None listed | None listed | Not listed |
| 30 | Not stated | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
Before you go
Brief 6Y4 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Van Effen Fld, 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.