Dry Tortugas Waypoints and Approaches
| # | Name | Marker # | Latitude | Longitude |
| 1 | Cosgrove Shoal Light | 24-27.44 N | 82-11.14 W | |
| 2 | Rebecca Shoal | Pt. 1 Mile South | 24-33.70 N | 82-35.20 W |
| 3 | Dry Tortugas | S. E. Channel ent. | 24-37.37 N | 82-49.78 W |
| 4 | Dry Tortugas | Iowa Rock G " 3 " | 24-38.31 N | 82-51.68 W |
| 5 | Dry Tortugas | S.W. Channel ent. Y " C " | 24-34.00 N | 82-52.00 W |
| 6 | Dry Tortugas | N.W. Channel Y " I " | 24-43.55 N | 82-52.00 W |