| Identifier: | GRONC |
| NAS ID: | GRONC |
| Name: | GRONC |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | NEW YORK |
| ICAO Region: | K6 |
| Latitude: | 41-08-42.800N (41.145200) |
| Longitude: | 071-45-27.740W (-71.757700) |
| Magnetic Variance: | 13.5 W as of 9/30/2025 |
| High ARTCC Area: | ZBW |
| Low ARTCC Area: | ZBW |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| CONTROLLER HIGH |
| CONTROLLER LOW |
| ENROUTE HIGH |