www.delawareonline.com ¦ The News Journal ¦ Delaware River carries nature, industry (Delaware Online) HANCOCK, N.Y. When an oil tanker dumped nearly a half-million gallons into the Delaware River last November, the spread of the oil north beyond Philadelphia and south into the bay made clear again the importance and vulnerability of a river that starts as fresh water in the Catskill Mountains and ends at the salty mouth of Delaware Bay.
