Here's what to know about the Yooperlite stones and where you can find them in Michigan.

A gem and mineral dealer in the U.P. has made a glowing discovery. Erik Rintamaki discovered a rock that glows under an ultraviolet light made of a mineral never seen before in Michigan. Without ...

MENOMINEE COUNTY, MI -- Along the shoreline of Green Bay sits Michigan’s largest Yooperlite, illuminating several feet and making for an excellent photo-op to mark your Upper Peninsula adventure. Rock ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...