Front:
The Soo Locks
Back:
1197V
SOO LOCKS
Sault Ste. Marie, Mich.
In Michigan's Upper Peninsula
Lake freighters on their way to the Soo Locks.
The Locks were built to overcome the 21 foot
difference in water level between Lake Superior
and Lake Huron.
70853
Upper Michigan Card Co., Manistique, Michigan
HERE
