Black Butte North Airport (Winifred, MT) BB0 备注
| A33-09/27 | Rough surface livestock trs and trails. |
| A30-09/27 | Sage brush encroaching west end runway 09 100 ft. |
| A110-7 | Black butte 1500 ft southeast of runway 27 threshold, 3201 ft MSL. |
| A110-6 | For clearance contact salt lake artcc at 801-320-2568. |
| A110-5 | Commercial aircraft contact blm manager 406-538-1923. |
| A110-4 | Wildlife and cattle on and in vicinity of airport. |
| A110-3 | No snow removal. |
| A110-2 | Runway maintenance ireg. |
| A110-1 | Runway soft and muddy when wet. |
