Loring Hospital Airport (Sac City, IA) 6IA1 Remarks
| A52-H1 | 40 ft trees surround helipad; 60 ft smokestack 100 ft northwest and 70 ft antenna 120 ft northwest of helipad. |
| A18 | Medical use. |
| A110-1 | For clearance contact minneapolis artcc at 651-463-5588. |