A final view of visitors on the raft that floats over Kitch-iti-ki-pi as they gaze down through the transparent waters to the churning sand shapes forming constantly on the bottom. There is a submerged viewing port in the center of the raft all the visitors are gathered around which allows viewing without reflections. The raft itself is moved by a cable which the riders operate themselves.
The description states:
The “Big Spring”
Known to the Indians as “The Mirror of Heaven”, the Big Spring is one of the seven wonders of Michigan. Located in the Palms-Book State Park near Manistique, there is no charge to see this magnificent phenomenon of Upper Michigan.
–This card was dates from the 1950s.