William B Bolton Airport (Empire, MI) Y87 备注
| A81-APT | Activate lirl runway 17/35 - CTAF. Lirl runway 17/35 out of service NOV-APR. |
| A58-35 | +15 ft road, 105 ft dist, 125 ft L/R. |
| A58-17 | +9 ft fence, 90 ft dist, 125 ft L/R. |
| A57-35 | Approach ratio 20:1 to dthr ovr 88 ft trees, 1760 ft dist, 100 ft R. |
| A57-27 | Approach ratio 20:1 to dthr. |
| A57-17 | Controlling obstn exceeds A 45 deg slp. |
| A57-09 | Approach ratio 7:1 to dthr ovr 32 ft trees, 250 ft dist, 75 ft R. |
| A42-27 | Runway and dthr marked with 3 ft yellow cones. |
| A42-09 | Runway and dthr marked with 3 ft yellow cones. |
| A33-09/27 | Uneven rolling trrn. |
| A30-09/27 | Closed DEC-MAR and when snow covd, no snow removal. |
| A13 | Empire village ofc 231-326-5466, empire twp ofc 231-326-5182. |
| A110-8 | For clearance contact minneapolis artcc at 651-463-5588. |
| A110-5 | Runway 35 wind sock 110 ft east of runway centerline. |
| A110-3 | Ultralight and uas act on and in vicinity of airport. |
| A110-2 | Campground adjacent to airport; please call 231-326-5285. |
