3U9
Boulder Airport
Boulder Airport (3U9) is a general-aviation airfield serving Boulder, Montana. The field lies at 4,968 ft (1,514 m) above sea level and has a single runway of 3,675 ft (1,120 m), grass. Its nearest neighbour is Klies Air Strip (MT43), 13 nm NW.
Boulder Airport is a smaller field, so Alārium does not attribute movements to it directly — but aircraft flying near it appear on the live map like any other, at their real altitude and on their real track.
Location
- Elevation
- 4,968 ft (1,514 m)
- Coordinates
- 46.2116, -112.1060
- Serving
- Boulder
- Region
- Montana
- Time zone
- America/Denver
Runways1 · longest 3,675 ft
The diagram shows each runway’s orientation and relative length, read from its designator — runway 11 points 110° magnetic. Threshold coordinates are not published for this field, so strips are drawn about its centre rather than where they sit on the ground. It is a diagram, not a chart to navigate by.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 11/29 | 3,675 ft1,120 m | 72 ft | Grass | — |
Nearby airfields
Runway and field data from the OurAirports public-domain dataset. Positions are ADS-B, which covers most but not all aircraft.