Babeldaob (also Babelthuap) is the largest island in the island nation of Palau. Its area, 331 km2 (128 mi2), makes up over 70% of the area of the entire country. It is located northwest of Koror.
Unlike most of the islands of Palau, Babeldaob is mountainous. It contains Palau's highest point, the 242 meter tall Mount Ngerchelchuus.
Palau's second-most populous state, Airai, makes up the southern end of the island. Airai contains the nation's chief airport, as well as a bridge to Kokor.
The cause of their alarm is a multimillion-dollar U.S. road project on the pristine island of Babeldaob that they say has brought Palau to a monumental environmental and cultural crossroad.
Babeldaob is the second largest island in Micronesia after Guam and comprises 70 percent of the nation's land.
In Airai State, the first state on Babeldaob over the bridge from Koror, development has already begun as some of the population in Koror -- where about 70 percent of the nation's people live -- is beginning to move over the bridge that connects the two islands.