| Identifier: | TRTLL |
| NAS ID: | TRTLL |
| Name: | TRTLL |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 41-22-14.030N (41.370600) |
| Longitude: | 088-36-41.800W (-88.611600) |
| Magnetic Variance: | 3.4 W as of 9/30/2025 |
| High ARTCC Area: | ZAU |
| Low ARTCC Area: | ZAU |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| STAR |