- Airport Identifier
- 3IN4
- Airport Name
- Johnson Airport
- Location
- Markle, United States
- Field elevation (ft)
- 830 ft
- Airport Type
- Small airport
- Magnetic Variation
- 4.87° E
- Coordinates
- 40.7750015258789° N 85.3388977050781° W
| Runway Name | Runway Length | Displaced Threshold (ft) | Runway Heading (°T) | Runway Heading (°M) | Slope | Surface |
|---|---|---|---|---|---|---|
| 18 | 2,600 ft x 75 ft | N/A | Unknown | 180 °M | Unknown | Grass |
| 36 | 2,600 ft x 75 ft | N/A | Unknown | °M | Unknown | Grass |