Matt Cassidy, Program Specialist with Minnesota Historical Society joins us to discuss how the geology of the Mississippi River has shaped the way humans have used the river for the past 10,000 years.
Matt Cassidy, Program Specialist with Minnesota Historical Society joins us to discuss how the geology of the Mississippi River has shaped the way humans have used the river for the past 10,000 years.
Matt Cassidy, Program Specialist with Minnesota Historical Society joins us to discuss how the geology of the Mississippi River has shaped the way humans have used the river for the past 10,000 years.