Most people only know the Mystic River from a passing view from the Tobin Bridge, an industrial witches brew of gas, oil, and steel companies. But just beyond the aging Amelia Earhart dam, within sight of the Bridge, a different Mystic emerges. (Text by Stan Grossfeld, Globe Staff)

The Mystic River, Boston Harbor’s other river, is famous for the ills of society. In 1990, Charles Stuart plunged to his death from the Tobin (Mystic River) Bridge. Recently members of the Chelsea Yacht Club have had to move their boats after chunks of the Tobin Bridge rained down on them.