Explore / North America / Midwest
Midwest, Minnesota
Thomsonite Beach MN
Thomsonite
Mineral locality Documented siteLegal to collect
What you could find
Reported finds from this ground.
Agates and jasperAlso reported: The Lake Superior north shore near Grand Marais sheds eyed thomsonite pebbles from basalt onto a few gravel beaches..
Photos via Wikimedia Commons: Teerui (Public domain).
Why this spot
thomsonite, agate
Documented rockhounding locality.
Before you go
Hazards noted for this site.
Remote or mine groundShafts, heat and weather
Check access and conditions first.
Keep exploring nearby
More spots in this area.