Guam is one of the ports of Guam, located at the southernmost point of the Mariana Islands and serving as a gateway to Micronesia (a collective term for the Western Pacific Islands). It is an overseas territory of the United States. Unconstitutional controlled territories of the United States. 5000 kilometers (3000 miles) west of Hawaii. Guam is an island located at the southern end of the Mariana Islands in the Pacific Ocean, at 13 ° 26 ′ N and 144 ° 43 ′ E. Covering an area of 549 square kilometers. The population was 158000 (in 2002), with the majority being Chamorro people. The capital of Guam, Agania, is located in the western part of the island. Guam belongs to a tropical monsoon climate, with an average annual temperature of 26-27 ℃ and an annual precipitation of over 2000 millimeters. There are typhoons from August to September. The terrain is high in the south and low in the north, with Lanlan Mountain in the southwest being the highest peak at an altitude of 407 meters. There are fertile plains along the western coast, which were occupied by Spain since 1565.