Duluth-Superior Harbor Marine Traffic
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Listen to Lakers, freighters and tugs as the go about their nautical business in the Duluth-Superior Harbor.
Duluth Harbor Marine Channel
| Port Operations | 5 | 156.25 |
| Safety Navigation, Rescue | 6 | 156.30 |
| Commercial, Business Traffic | 8 | 156.40 |
| Harbor Emergency | 9 | 156.45 |
| Lift Bridge | 10 | 156.50 |
| Bridges, locks & dams | 12 | 156.60 |
| Ship-to-Ship | 13 | 156.65 |
| Bridges, locks & dams | 14 | 156.70 |
| General - Safety | 16 | 156.80 |
| Harbor Tugs | 18 | 156.90 |
| Bridges, locks & dams | 20 | 157.00 |
| Coast Guard | 22 | 157.10 |
| General use, & Great Lakes WX | 26 | 157.30 |