Coolin, Idaho
66S Cavanaugh Bay
Cavanaugh Bay (66S) is a non-towered, public-use airport in Coolin, Idaho, at 2,484 ft MSL. Its runway is 15/33 (3,100 by 120 ft, turf). Right traffic for runway 15. 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 66S
- Location
- Coolin, Idaho (Bonner County). 3 NM N of the city center
- Elevation
- 2,484 ft MSL
- Position
- 48.5187° N, 116.8222° W
- Control tower
- No, non-towered
- Sectional chart
- Great Falls
- Magnetic variation
- 20° E (1985)
- Ownership
- Publicly owned, open to the public
- Attendance
- JUN-AUG THU-MON 0800-1700
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 15/33 | 3,100 × 120 ft | Turf, good condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 15 | Right traffic | None listed | None listed | None listed | Not listed |
| 33 | Left traffic | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
- Seaplane Operations Conducted in Bay North & Adjacent To Arpt; Monitor Ctaf.
Before you go
Brief 66S in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Cavanaugh Bay, 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.