This image follows on from the previous post, showing the ‘castle’ from a vantage point further to the left. Erosion at the lake level has undercut the rock structure and made it unstable. Further rain penetrating the sandstone will, over time, cause the unsupported rock to separate and collapse into the water. This process is accelerated by the freeze and thaw cycle common in this northern Michigan climate.
The description on the back states:
These 200-foot high colored nature-carved rocks are one of the scenic wonders of the world. Stretching for miles along the south shore of Lake Superior, only one formation, Miners Castle, can be reached by auto. A boat trip reveals their real beauty. This image likely dates from the 1950s.
–As this is a colored version of the original black and white photo, the colors are somewhat exaggerated. This formation is part of the Pictured Rocks National Lakeshore, the first area so designated, in 1966.