SAILING DIRECTIONS FOR THE HARBOR OF KEELUNG, ISLAND OF FORMOSA. . . . Keelung harbor, or Keelung-taw, head (or promontory) is situated near the northeastern point of the island of Formosa. . . . Making and keeping Keelung island well to the eastward, the entrance may be approached without fear, as the soundings are deep, and free from hidden dangers....The town of Keelung is situated at the head of the harbor, about a mile from this last anchorage, and surrounded by extensive mud flats, bare at low water, and can only be approached by small boats at high tides. . . . There is a covered market or bazaar at Sowan Point, near the junk anchorage, and another in the town of Keelung.