| Identifier: | HERWK |
| NAS ID: | HERWK |
| Name: | HERWK |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 41-11-18.470N (41.188500) |
| Longitude: | 088-29-54.410W (-88.498400) |
| 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 |