This image shows a few of the rock formations which have, through erosion, become islands in the Lower Dells. As wind and water continue to erode the formations extending into the water, the peninsulas ‘break off’ and become free standing.
There is no description on the back of this card.
The boat “Josephine” was certainly stopped and posed for this photo, as the captain is outside the pilot house and standing on the forecastle.
This image likely dates from the 1940s.