The town of Riverhead rests on the mouth of which river that drains an area between the Harbor Hill and Ronkonkoma terminal moraines?
Riverhead (town), New York:  The town rests on the mouth of the Peconic River, from which it derives its name. Peconic River:  The Peconic River drains an area between the Harbor Hill and Ronkonkoma terminal moraines, and flows into Flanders Bay which in turn connects to Peconic Bay east of Riverhead.
i don't know