Great Lakes Mail Boat. Has it's own Zip Code.Been delivering mail to the freighters for many years. Pulls right up next to them they lower a bucket all set. When leaving the freighter they both give a report. Simply awesome, Going under the Amabasador Bridge linking Detroit to Windsor Canada. They deliver day and night throughout the shipping season. The Soo Locks opening up tomorrow for shipping. The USCG Mackinaw Ice Breaker has been working to clear the waterways. Tags:ThesoundoftheHornsbellowingGreatStuffLotsoftraditionhere! Added: 24th March 2008 Views: 128 Rating: Posted By:Marty6697