1
Runway
1
Frequency
0
Procedures
1
NOTAM
Quick Facts
FAA
29C
Elevation
640 ft MSL
Runways
1
Frequencies
1
Tower
No
Fuel
N/A
Coordinates
44.047, -82.914
Airport Information
Facility Type
AIRPORT
Elevation
640 ft MSL
Control Tower
No
Fuel Types
None listed
ARTCC
MINNEAPOLIS
Coordinates
44.0468, -82.9144
Ownership
Private
Hours of Operation
Current Weather
METAR KBAX 211615Z AUTO 07010KT 040V100 10SM CLR 11/02 A3040 RMK AO2 T01110016
Flight Category
VFR
Wind
70° at 10 kt
Visibility
10+ SM
Temperature
11.1°C
Dewpoint
1.6°C
Altimeter
1029.50 inHg
Cloud Cover
CLR
Nearest weather from KBAX (17 NM away)
Observed 2026-05-21 16:15Z
Nearby Weather Cameras
No camera at 29C. Showing nearest cameras.
Kincardine
West · Camera 2 · 2 cameras total
79 NM away
Centrailia
NorthWest · Camera 3 · 3 cameras total
96 NM away
5 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 18/36 | 1,800 ft | 85 ft | TURF | - |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| CTAF | 122.9 | GRINDSTONE AIR HARBOR |
Active NOTAMs
Nearby Airports in Michigan
Nearest airports
- 4D0 — ABRAMS MUNI
GRAND LEDGE
- 4D0 — ABRAMS MUNI
GRAND LEDGE
- 57MI — Acme Skyport
Acme
- 44MI — AIRBATCO FLD
MULLIKEN
- 44MI — AIRBATCO FLD
MULLIKEN
Michigan airports
29C Operational Overview
Location & Facility
GRINDSTONE AIR HARBOR (29C) is a privately owned airport open to the public located in PORT AUSTIN, Michigan, United States. The field sits at an elevation of 640 feet above mean sea level (MSL) at coordinates 44.0468°N, 82.9144°W.
Runways
GRINDSTONE AIR HARBOR has 1 runway. The longest runway (18/36) measures 1,800 feet by 85 feet with a turf surface.
Communications & Operations
GRINDSTONE AIR HARBOR is a non-towered (pilot-controlled) field. A total of 1 communication frequencies are published for this facility.
Weather Cameras
2 FAA Weather Cameras are available near GRINDSTONE AIR HARBOR, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at GRINDSTONE AIR HARBOR is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations. There is currently 1 active NOTAM for this facility.
Frequently Asked Questions
What is 29C?
29C is the ICAO identifier for GRINDSTONE AIR HARBOR, a public-use airport located in PORT AUSTIN, Michigan, United States.
How many runways does GRINDSTONE AIR HARBOR have?
GRINDSTONE AIR HARBOR (29C) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 29C?
The field elevation of GRINDSTONE AIR HARBOR is 640 feet above mean sea level (MSL).
Is fuel available at 29C?
No fuel types are currently listed for GRINDSTONE AIR HARBOR. Contact the FBO directly for availability.
What are the current weather conditions at 29C?
The current flight category at GRINDSTONE AIR HARBOR is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 29C?
There are currently 1 active NOTAM for GRINDSTONE AIR HARBOR. Sign up for AeroCopilot to read decoded NOTAM text and AI interpretations.
How do I access complete data for 29C?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for GRINDSTONE AIR HARBOR.
Where is GRINDSTONE AIR HARBOR located?
GRINDSTONE AIR HARBOR (29C) is located in PORT AUSTIN, Michigan, United States, at an elevation of 640 ft MSL.
Does 29C have weather cameras?
29C does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.