Maddox Ranch Company Airport (Chinook, MT) 3MT4 备注
| A40-06/24 | Runway 04/22 led and reflectors. |
| A110-4 | For clearance contact salt lake artcc at 801-320-2568. |
| A110-3 | Runway 29 dirt road crosses runway 300 ft beyond threshold. |
| A110-2 | Runway 04 large 8 ft deep sinkhole in rgt side of runway 400 ft from threshold. |
| A110-1 | Runway 11 has abrupt gulley 20 ft from end of runway. |
