Experts: Great Lakes Dunes Face Threats

Associated Press: Known as Pigeon Hill, the Lake Michigan dune towered 30 stories high on the south side of Muskegon. Formed over thousands of years, it disappeared in three decades as its sand was mined for industrial use in the mid-20th century. "You can only see Pigeon Hill in a museum now," said Tanya Cabala, an environmental consultant from Whitehall who has studied its history. Michigan has regulated sand mining since then, although environmentalists want stronger controls. But ... Link