 | Airports: United States: Otterbach Farm Airport | |
| Airport name: | Otterbach Farm Airport |
| Airport code (ICAO): | 81LL |
| Latitude: | 41.5692 |
| Longitude: | -89.1737 |
| Height above sea: | 840 ft / 256 m |
| Country: | United States - North America |
| Region: | Illinois |
| City: | Mendota |
| Airlines scheduled services: | no |