"The Story of Ancient Lava Flows Beneath Lake Superior": In-Person Badger Talk from Madison, WI

This is a FREE event hosted by the Madison Gem and Mineral Club. Nearly one billion years ago, beneath what is now Lake Superior, lava flowed from shield volcanoes and fissures. This talk describes what the environment may have been like as this Midcontinent Rift developed. For more information, click the link below.