Aguijan is a small bean-shaped coralline island in the Northern Mariana Islands chain situated 8 km southwest of Tinian. It is only 7.09 km² (2.738 sq mi) in size and is nicknamed Goat Island due to the large number of feral goats present there. Much of the native vegetation on Aguijan has been destroyed by goats.
Aguijan is uninhabited and is seldom visited because it is surrounded by sheer steep cliffs. However, a 2002 survey of the island did find a handful of native species there, including the Mariana Fruit Bat, the Polynesian sheath-tailed bat and the Micronesian megapodeMegapodius laperouse.
