Donald D Coski Memorial (U84)
Non-towered public-use airport serving Donnelly, Idaho, at 4,860 ft elevation.
Elevation4,860 ft
ControlNon-towered
Longest runway2,500 ft
Magnetic variation18° E
High elevation. At 4,860 ft, density altitude on a warm day can be thousands of feet higher. Check performance with the density altitude calculator.
Live weather
Forecast (TAF)
Loading…
Frequencies
| CTAF | 122.9 |
|---|
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 18/36 | 2,500 × 125 ft | Turf |
No fuel listed. Sectional: Great Falls.
Runway diagram
Drawn to scale from FAA runway-end data, true north up. Some runway positions are approximate (drawn from their direction through the airport's reference point). Not for navigation: use the official FAA airport diagram and Chart Supplement.
Nearby airports
KMYLMc Call Municipal10 NM NU70Cascade15 NM SU82Council Municipal15 NM W1U4New Meadows17 NM NWI92Reed Ranch19 NM NE24KKrassel Usfs21 NM NE
Before you fly here
- Read the FAA Chart Supplement entry for U84: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around U84 for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 1985. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.