Fingal Head, New South Wales Letitia, which they found had entered the Tweed. Hence the naming of Letitia Point. There is also every suggestion that Dixon made reference to the Giant's Causeway. It is highly probable that "Fingal Head" was named after Fingal's Cave on the island of Staffa in the Inner Hebrides of Scotland because of the similarity in appearance due to naturally formed Columnar Basalt outcrops which extend above the ocean surface. The local aboriginal people were the Minjungbal, but white settlement significantly impacted the population in the late 19th to early 20th century., In 1933, the last female full-blood Aborigine on the
Cave of the Mounds National Park Service designated the cave as a National Natural Landmark. The limestone from which the cave was carved began forming approximately 488 million years ago, during the Ordovician Period. During this time, much of North America was covered with warm, shallow seas. Over millions of years, calcium carbonate shells from tiny marine organisms accumulated on the sea floor, forming enormous quantities of limestone. The type of limestone in which the cave was formed is called galena dolomite because of its high concentration of the lead ore galena. The cave began forming about a million to a million and a