Grindstone Air Harbor (29C)

Airport information: Port Austin, MI, United States. Search for another airport below.

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Location and general information

FAA identifier: 29C
FAA site number: 10233.*A
City / state: Port Austin, MI
County: Huron
Reference point: 44°02'48.40" N
82°54'51.90" W
Elevation: 640 ft (estimated)
Magnetic variation: 7° W (1995)
Status: Operational
Ownership: Private, Kelly J Hanson
Use: Open to the public
Airport area: 8 acres
From downtown: 4 NM east
Sectional chart: Lake Huron
Activated: 11/1996

Services and facilities

Control tower: No
Attendance: Unattended
ARTCC: Minneapolis (ZMP)
Flight service: Lansing (LAN)
1-800-WX-BRIEF
NOTAM facility: LAN
Wind indicator: Yes, unlighted
Segmented circle: No
Airport manager: Kelly J Hanson
989-269-7299
Last FAA inspection: 07/01/2024

FAA remarks

For CD contact Minneapolis ARTCC at 651-463-5588.
Deer and large birds on and in the vicinity of airport.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

FAA identifier: 29C
Location: Port Austin, MI, United States
Elevation: 640 ft
Coordinates: 44.04678, -82.91442

Runways

Runway	Size	Surface
18 / 36	1,800 × 85 ft	Turf, fair

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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