- Airport Identifier
- 1LL2
- Airport Name
- Spring Brook Airport
- Location
- Seneca, United States
- Field elevation (ft)
- 500 ft
- Airport Type
- Small airport
- Magnetic Variation
- 3.094° E
- Coordinates
- 41.300628° N 88.633271° W
| Runway Name | Runway Length | Displaced Threshold (ft) | Runway Heading (°T) | Runway Heading (°M) | Slope | Surface |
|---|---|---|---|---|---|---|
| 18 | 2,800 ft x 70 ft | N/A | Unknown | 180 °M | Unknown | Paved |
| 36 | 2,800 ft x 70 ft | N/A | 351 °M | 348 °M | Unknown | Paved |