Ulithi, in the Western Carolines

From Habele Institute

U.S. Bureau of Yards and Docks (1947). "Ulithi, in the Western Carolines". Building the Navy's Bases in World War II. 2. pp. 331–335.

Abstract: The naval base at Ulithi was established to provide a fleet anchorage and an air base to support half of a night fighter squadron, a light inshore patrol squadron, pool for a maximum of 150 carrier replacement aircraft, a utility squadron, and staging facilities for transport aircraft. The basic plan also called for maintaining shore facilities to support the garrison and the fleet. This atoll, 93 miles northeast of Yap, 370 miles southwest of Guam, and 370 miles northeast of Peleliu, consists of four elements: the main atoll, in the west; the island of Falalop off the northeast point; a small detached reek with several islets, lying east of the main atoll; and Zohhoiiyonu Bank, an incomplete atoll, to the extreme east. All the islets of the group are of typical atoll structure, with low level land, wooded in spots and swamp areas, generally covered with thick vegetation. The rainfall is heavy and the climate tropical. Mogmog Island, in the nod, is the principal islet; others which were most used by our forces are Falalop, Asor, Potangeras, and Sorlen. Ulithi Atoll was occupied on September 20, 1944, with no ground opposition by Japanese forces. There were numerous air raids in the early days of the operation, but no damage to Seabees or equipment resulted. The 18th Special Battalion arrived on October 1, 1944...