Cavanaugh Bay Airport
66S · Coolin, Idaho · Bonner County · map
Cavanaugh Bay Airport is a public-use airport owned by the State of Idaho/Itd-Div of Aero, 3 miles north of Coolin, Idaho, 2,484 feet above sea level. Its one runway, 15/33, is 3,100 feet of grass.
The airport
- Codes
- FAA 66S
- Kind
- Airport · open to the public · publicly owned
- Owner
- State of Idaho/Itd-Div of Aero
- Elevation
- 2,484 feet above sea level
- Control tower
- No control tower
- Attended
- June to August, Thursday to Monday, 8:00 am to 5:00 pm
- Repairs
- airframe: none; engine: none
- Parking
- tiedown
- On the chart
- Great Falls sectional
- Magnetic variation
- 20E
- In the FAA's files since
- September 1949
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 15/33 | 3,100 × 120 ft | Grass, good |
- Runway 15: right-hand traffic pattern, tree on the approach
- Runway 33: tree on the approach
Radio frequencies
| Common traffic advisory (CTAF) | 122.9 |
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Coolin from the FAA register
10 aircraft are registered to owners in Coolin, Idaho: 8 piston singles, 2 piston twins. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Companies and organisations in town with two or more aircraft:
Individuals are counted, never named. All aircraft registered in Idaho.
Accidents and incidents at or near this airport NTSB records · 10 since 1982, 1 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- Airport existed prior to 15 may 59.
- No winter maintenance.
- 15/33 edges and thresholds marked with white rocks.
- Both runway ends have 50-70 feet tall trees. Afcts either approach or departure.
- Runway 15 +100 feet tree 310 feet from runway end 150 feet R; +12 feet road 40 feet on centerline; +120 feet tree 200 feet from runway end 180 feet L; +30 feet tree 125 feet from runway end on centerline; +25 feet building at 90 feet; 60 feet L.
- Runway 15/33 no line of sight between runway ends.
- Watch for sprinklers on runway.
- Airport attended by caretaker durg summer months.
- Seaplane operations conducted in Bay north and adjacent to airport; monitor the common traffic frequency.
- Heavy snowmobiles activity during winter months.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.