St Johns, Michigan
M99 Shady Lane
Shady Lane (M99) is a non-towered, public-use airport in St Johns, Michigan, at 680 ft MSL. Its runway is 09/27 (2,302 by 60 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 M99
- Location
- St Johns, Michigan (Clinton County). 4 NM N of the city center
- Elevation
- 680 ft MSL
- Position
- 43.0612° N, 84.5484° W
- Control tower
- No, non-towered
- Sectional chart
- Detroit
- Ownership
- Privately owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 09/27 | 2,302 × 60 ft | Turf, fair condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 09 | Not stated | None listed | None listed | None listed | Not listed |
| 27 | Not stated | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
Before you go
Brief M99 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Shady Lane, 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.