Finely ground black sand overlies coarser light sand at a particular location along the shore of Lake Michigan.
Rough surf paints in black sand.
more… »
a multi-disciplinary dialog
Posted by Birgit Zipser on January 5th, 2010
Finely ground black sand overlies coarser light sand at a particular location along the shore of Lake Michigan.
Rough surf paints in black sand.
more… »
