Known for their integrated colors and patterns, collectors are often amazed at agates that wind up on Upper Peninsula lakeshores. Known for its diversity and beauty, an agate stone is a form of quartz ...
DULUTH — About 1.1 billion years ago here, fissures opened in the surface of the earth, depositing lakes of molten rock near what would eventually be the Twin Ports and Lake Superior. This is ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback