Amygdaloidal basalt rock on Great Sand Bay beach on Lake Superior in Keweenaw Peninsula, Michigan.
Stones on Lake Superior beach in Keweenaw Peninsula, Michigan
![Close up view of stones on a beach shoreline](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/GreatSandBaybeach.jpg?itok=OGugvWdY)
Detailed Description
Stones on Lake Superior beach at Great Sand Bay in the Keweenaw Peninsula, Michigan
Sources/Usage
Public Domain.