SearchSmall airport
Grindstone Air Harbor Airport
Port Austin, Michigan, United States
- IATA
- None
- ICAO
- None
- FAA
- 29C
- GPS
- 29C
- Local time
- --:--
- Elevation
- 195 m (640 ft)
- Longest runway
- 549 m (1,800 ft)
- Runways
- 1
Grindstone Air Harbor Airport is a small airport in Port Austin, Michigan, United States. It has no IATA or ICAO code; its identifier is 29C. Its longest runway is 549 m (1,800 ft).
Location
- Type
- Small airport
- Serves
- Port Austin
- Region
- Michigan
- Country
- United States
- Coordinates
- 44°02′52″N 82°54′51″W
44.04780, -82.91420 · Map - Elevation
- 195 m (640 ft)
- Time zone
- America/Detroit
Runways
| Runway | Length | Width | Surface | Lighted |
|---|---|---|---|---|
| 18/36 | 549 m (1,800 ft) | 26 m (85 ft) | TURF-F | No |
Navigation Aids within 60 km 2
| Ident | Name | Type | Frequency | Distance |
|---|---|---|---|---|
| BAX | Bad Axe | VOR-DME | 108.20 MHz | 30 km |
| ASP | Au Sable | VOR-DME | 116.10 MHz | 59 km |
Data last refreshed 28 September 2026. Not for navigation. About the data.