Freighter Entering Duluth-Superior Harbor, North and South Pier Lights

TITLE:  Opening of Navigation Season
First Giant Freighters Entering Ship Canal and Duluth-Superior Harbor

 
CAPTION: OPENING OF NAVIGATION SEASON,
FIRST GIANT FREIGHTERS ENTERING
DULUTH-SUPERIOR HARBOR
The navigation season for Duluth-Superior harbor for Interlake navigation is approximately from April 15th to December 15th or about eight months. This view shows the giant freighters on their first trip of the season to the head of the Great Lakes, as they enter Duluth-Superior harbor.
POSTCARD ID: 142-D2B-H1222
PUBLISHER: Zenith Interstate News Co., Duluth, MINN.
POSTMARK: Not, Not Used Postally