| Navaid Facility ID: | YGR |
| Official Navaid Facility ID: | |
| Navaid Facility Type: | VOR-DME |
| Navaid Name: | Grindstone |
| City: | |
| State: | |
| FAA Region: | |
| Latitude: | 47-25-49.08N (47.4303) |
| Longitude: | 61-46-26.76W (-61.7741) |
| Lat/Long Survey Accuracy: | |
| Owner: | |
| Operator: | |
| Common System Usage: | |
| Public Use: | |
| Navaid Class: | |
| Hours of Operation: | |
| Magnetic Variance: | 17.1 W as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | () |
| ARTCC Low Altitude ID (Name): | () |