Farallon De Pajaros (Uracas) Located 316 nautical miles north of Saipan and 1 square mile in area, the island has an active volcano which keeps its steep slopes smooth by frequent flows of lava and ash. The summit is crowned with white sulphur and at times dense clouds of yellow smoke and fire issue from the crater. The southwest and west shores are precipitous and bare. Uninhabited. Highest point 1,047 ft.