Biotic Borders: Cell membranes under scrutiny
Rana, FR. 2002.  Facts for Faith (10):42-44, 47-52. CELD ID 8462

Although the Piscataqua River forms a natural boundary between Maine and New Hampshire, these two states have disputed the exact location of their border for the last 260 years. Maine contends that the state line runs through the middle of the Piscataqua River. New Hampshire maintains that the boundary lies on the river's north shore.