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What’s This Rock? Unraveling the Geologic Story of Minnesota's North Shore

Course Overview

The cobbled beaches and rocky cliffs of the North Shore can inspire some serious geological curiosity: What’s this rock? Where did it come from? Why is it here? Well, lace up some sturdy footwear and head into the field to be immersed in the fascinating geology of the northern part of Minnesota’s North Shore with UMD geology professor emeritus, Jim Miller. Using only your powers of observation, "What’s This Rock" will focus on “reading” the rocks from Grand Portage to Grand Marais that tell part of the billion year-old geological story of the Lake Superior area—a tale that can be best characterized as one of Fire and Ice. After an introductory presentation on Friday night, the class will travel to the Canadian border on Saturday morning and visit classic North Shore exposures on the way back to Grand Marais. The day-long trip will visit roadcuts and shoreline exposures that illustrate the volcanic and glacial history of the northernmost part of Minnesota’s North Shore. Sunday morning will start out with a hike up the Cascade River, followed by viewing roadcuts of the gemstone Thomsonite, and then rock-hounding on the shore of Lake Superior in Grand Marais. After this excursion, you’ll never see the North Shore the same way again.

This course is part of the Northern Landscapes Festival. Evening programs on northern ecology topics will be offered to the public at no charge on Friday and Saturday evenings. See the event page for more information.


Fri, May 29th, 2020  –  Sun, May 31st, 2020

Course Details

Length: 2½ Days
Skill Levels: Beginner to Advanced
Hours: Day 1:5-8pm, Day 2: 9am-5pm, Day 3: 9am-2pm
Intergenerational age: 10+
Registration Cost: $170.00 *
* Early-Bird rate in effect until Fri, Apr 17th, 2020

Required Tools

You will need the following tools for this class:

  • bag lunch for Days 2 & 3
  • appropriate outdoor clothing and footwear (sturdy!)
  • waterbottle
  • anything you need to be comfortable outdoors: sunscreen, bug nets, rain jacket, etc.

Optional Tools

Feel free to bring your favorite tools and whatever materials you might feel appropriate for this course.

More Information

Once registered, students will receive a confirmation email with further class information. Please call us if you haven't received it within 24 hours.

Waiting List

The course What’s This Rock? Unraveling the Geologic Story of Minnesota's North Shore Fri, May 29th, 2020  –  Sun, May 31st, 2020 is full.

Fill out the form below if you would like to be placed on a waiting list and notified if an opening becomes available. Full course details included above