Michigan rock hunting is a passion unlike anywhere ... 20-plus pounds and occur in a variety of colors including brown, white, red, gray, pink, black and yellow. Lake Superior agates are the ...

Although building sandcastles and jumping over the waves of the Great Lakes may be a blast, exploring Michigan ... rock that's reminiscent of caramels? That's a Lake Superior Agate. Known for its ...

Bill Rose, a Michigan Tech ... explanation for why the rocks are red: they're colored by hematite, occurring as oxidized iron. And while the artful precision of stripes, swirls, dashes and circles isn ...

After a successful fundraising effort to purchase loads of big riprap rock to protect the iconic ... Built in 1895, the red and white Round Island Lighthouse is the one hundreds of thousands ...