 | Airports: United States: Rentz Ultralightport | |
| Airport name: | Rentz Ultralightport |
| Airport code (ICAO): | 31MI |
| Latitude: | 41.7798 |
| Longitude: | -86.1772 |
| Height above sea: | 800 ft / 243 m |
| Country: | United States - North America |
| Region: | Michigan |
| City: | Niles |
| Airlines scheduled services: | no |