Hidden Thunder: Rock Art of the Upper Midwest mystery Stories of abuse

Stories of abuse

their ongoing struggles against a centuries-old legacy of colonial disempowerment

to feel the pulse of the earth

the electrifying proximity of the world of animals

fetched up in Gichi Bitobig—a stony harbor now known as Grand Marais

Hidden Thunder: Rock Art of the Upper Midwest mystery Stories of abuseIn Hidden Thunder, renowned watercolor artist Geri Schrab and archaeologist Robert "Ernie" Boszhardt give readers an up close and personal look at rock art. With an eye toward preservation, Schrab and Boszhardt take you with them as they research, document, and interpret at the ancient petroglyphs and pictographs made my Native Americans in past millennia. In addition to publicly accessible sites such as Wisconsin's Roche a Cri State Park and