| Navaid Facility ID: | ON |
| Official Navaid Facility ID: | ON |
| Navaid Facility Type: | NDB |
| Navaid Name: | Bolln |
| City: | WINONA |
| State: | MINNESOTA |
| FAA Region: | |
| Latitude: | 44-01-59.285N (44.0331) |
| Longitude: | 091-36-10.129W (-91.6028) |
| Lat/Long Survey Accuracy: | |
| Owner: | STATE OF MN |
| Operator: | STATE OF MN |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | LOMW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 1.3 W as of 6/8/2025 |
| ARTCC High Altitude ID (Name): | () |
| ARTCC Low Altitude ID (Name): | () |