August 28 @ 7:00 pm – 8:15 pm
Join the Madeline Island Wilderness Preserve for a program to look at centuries of wave action, freezing, and thawing that have sculptured shorelines throughout the Apostle Island National Lakeshore. Speaker Dr. Tom Fitz will discuss the evolution of these beautiful arched and vaulted chambers and honeycomb passages.
For more information on this event, please visit the Madeline Island Wilderness Preserve’s event page.
Registration is not required for this free event.
![A simplified geological map of the Apostle Islands showing the locations of cliffs with cavities and sea caves.](https://gatheringwaters.org/wp-content/uploads/2024/07/Evolution-of-Sandstone-Sea-Caves_MIWP.png)