 | Airports: United States: O John Clark Restricted Landing Area | |
| Airport name: | O John Clark Restricted Landing Area |
| Airport code (ICAO): | 7IL2 |
| Latitude: | 42.3684 |
| Longitude: | -87.9917 |
| Height above sea: | 790 ft / 240 m |
| Country: | United States - North America |
| Region: | Illinois |
| City: | Grays Lake |
| Airlines scheduled services: | no |