Hidden thunder

Rock Art of the upper midwest

Geri Schrab and Robert F. Boszhardt

A virtual journey to some of Wisconsin and Minnesota's ancient petroglyphs and pictographs, most of which are privately owned and publicly inaccessible. An archaeologist and artist join with Native voices to interpret ancient stories in stone.


Wisconsin Historical Society Press | 227 pages | Hard Cover

Book Us

We are available for public presentations and community talks that cover a variety of topics related to Wisconsin archaeology. 





rock art 3.jpg

To schedule a lecture or book talk, contact us

at 608.284.8907 or send us a message below.

Success! Message received.