Scenic Lake Chelan, about 200 miles east northeast of Seattle, is a vacation paradise that was created during the Ice Age. But how can geologists prove that an ice sheet from Canada did the digging?
This video by “Nick on the Rocks” explains the process.
Nick Zentner is the science outreach and education coordinator for the Department of Geological Sciences at Central Washington University. He has produced more than 40 short videos about Central Washington geology.