Geology of the Northwoods Flood

July 31, 2019
(Master Naturalist Advanced Training)
What happens to the flow of water across North America when a mile-high ice sheet sits in the Lake Superior basin? Deglaciation across the Northwoods led to dramatic changes in the routing of continental drainage basins, with unique signatures surrounding the Brule Spillway. Geology Professor from Northland College, Dave Ullman, will help us discover the impressive marks that Glacial Lake Duluth and the Brule Spillway left on our local landscape. Meet at the Cable Natural History Museum at 9:30 a.m. and return by 4:00 p.m. Bring lunch and water. Dress for the weather. Wear sturdy footwear. Be prepared to carpool to our field sites. You don’t have to be a certified Master Naturalist to participate! Any adult learners are welcome. Register by July 25 by going to or call 715-798-3890. $35 member/$40 non-member. 

Jul 31
Cable Natural History Museum