Tamuning, also known as Tamuning-Tumon-Harmon is a village located on the western shore of the United States territory of Guam. The village of Tamuning is the economic center of Guam, containing tourist center Tumon, Harmon Industrial Park, and other commercial districts. Its central location along Marine Corps Drive, the island's main thoroughfare, has aided in its development. Tamuning is the site of the access roads and the old passenger terminal of Antonio B.