- Airport Identifier
- 1LL6
- Airport Name
- Janssen Airport
- Location
- Shannon, United States
- Field elevation (ft)
- 877 ft
- Airport Type
- Small airport
- Magnetic Variation
- 2.315° E
- Coordinates
- 42.228099822998° N 89.7381973266602° W
| Runway Name | Runway Length | Displaced Threshold (ft) | Runway Heading (°T) | Runway Heading (°M) | Slope | Surface |
|---|---|---|---|---|---|---|
| 18 | 1,650 ft x 100 ft | N/A | Unknown | 180 °M | Unknown | Grass |
| 36 | 1,650 ft x 100 ft | N/A | Unknown | °M | Unknown | Grass |