Rock Hunting in lower Michigan is great because there’s nothing like finding your first Petoskey stone. The Upper Peninsula offers totally different treasures to hunt for!
To find yooperlites (sodalites) and agates, your best bet is to search on remote, rocky beaches on the west coast of the Keweenaw Peninsula.
Here are some good beaches to try:
Calumet Water Works Park (Lakeshore Dr, Calumet, MI 49913) has pavilions, toilets, picnic areas, playground, a volleyball court, and a basketball court. There is also a baseball area and a handicapped ramp to access the beach.
Hunters Point Park, (F4F5+WP Hunter’s Point Park, Copper Harbor, MI 49918) in addition to an unspoiled rocky beach, has walking trails that lead to the picturesque Plimpton Point. This is a great place to watch the Queen IV take brave passengers to and from Isle Royale some 60 miles across Lake Superior.
Gratiot River Park Beach (Gratiot River Shortcut Rd, Allouez, MI 49805) has picnic tables, grills, fire pits – BYO wood.
Agate Beach and campground (12950 Agate Beach Rd, Toivola, MI 49965) offers a pure outdoor experience with no electricity, rustic toilets, picnic tables, and a serene, remote beach.