U46
Big Southern Butte Airport
Big Southern Butte Airport (U46) is a general-aviation airfield serving Blackfoot, Idaho. The field lies at 5,073 ft (1,546 m) above sea level and has a single runway of 2,600 ft (792 m), dirt. Its nearest neighbour is Midway Airport (U37), 11 nm E.
Big Southern Butte 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
- 5,073 ft (1,546 m)
- Coordinates
- 43.4325, -113.0556
- Serving
- Blackfoot
- Region
- Idaho
- Time zone
- America/Boise
Runways1 · longest 2,600 ft
The diagram is drawn from published threshold coordinates, so each runway sits where it actually sits — true bearings, true separations, true lengths. Runway widths are exaggerated against length, which at true proportion would draw a hairline. It is a diagram, not a chart to navigate by.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 01/19 | 2,600 ft792 m | 110 ft | Dirt | — |
Nearby airfields
Runway and field data from the OurAirports public-domain dataset. Positions are ADS-B, which covers most but not all aircraft.