A trail in Sleeping Bear Dunes National Lakeshore ... in the fall and winter, covers itself in a white, woolly coating the size of a pinhead at the base of hemlock needles and can kill trees ...

Sleeping Bear Dunes National Lakeshore is one of the few places in the world that visitors can see perched dunes. The lakeshore's towering dunes, which stretch 35 miles long Michigan's eastern ...