# Grindstone Air Harbor Airport (29C)

**Grindstone Air Harbor Airport** (FAA: 29C) is a small airport in Port Austin, Michigan, United States. It opened in Nov 1996. It has one runway, 1,800 ft (549 m) long, grass.

Web page: https://dromopedia.com/airports/29c

## At a glance

- FAA: 29C
- Type: Small airport
- Serves: Port Austin, Michigan, United States
- Opened: Nov 1996
- Elevation: 640 ft / 195 m
- Coordinates: 44.0478, -82.9142
- Runways: 1
- Longest runway: 1,800 ft / 549 m
- Time zone: UTC-5/-4 · America/Detroit
- Wikidata: https://www.wikidata.org/wiki/Q35261653
- Weather station: KP58
- Ident: 29C

## Timeline

- Nov 1996: Grindstone Air Harbor Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 18/36 | 1,800 ft / 549 m | 85 ft / 26 m | Grass | 178° / 358° |  |

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Longest runway | 1,800 ft / 549 m | =26,165 of 29,858 | =12,889 in North America | =11,401 in US |
| Elevation | 640 ft / 195 m | =24,592 of 43,403 | =11,802 in North America | =9,823 in US |
| Age | Opened 1996 | =10,634 of 15,079 | =8,316 in North America | =8,202 in US |
| Runways | 1 | =4,364 of 29,978 | =2,583 in North America | =2,326 in US |

## Nearby airports

- [E53](https://dromopedia.com/airports/e53.md) Engler Field · 15 mi / 25 km
- [KBAX](https://dromopedia.com/airports/kbax.md) Huron County Memorial Airport · 19 mi / 30 km
- [MI03](https://dromopedia.com/airports/us-8272.md) Gentner Strip Airport · 26 mi / 41 km
- [ECA](https://dromopedia.com/airports/k6d9.md) Iosco County Airport · 31 mi / 50 km
- [56G](https://dromopedia.com/airports/56g.md) Indian Creek Ranch Airport · 35 mi / 56 km
- [98G](https://dromopedia.com/airports/98g.md) Sebewaing Township Airport · 35 mi / 56 km

## Sources

- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/29c/data