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 Crystals the Naica mine workings, the Cave of Swords (). It is located at a depth of , above the Cave of the Crystals, and contains spectacular, smaller ( long) crystals. It is speculated that at this level, transition temperatures may have fallen much more rapidly, leading to an end in the growth of the crystals. Giant Crystal Cave was discovered in April 2000 by miners excavating a new tunnel for the Industrias Peñoles mining company located in Naica, Mexico, while drilling through the Naica fault, which they were concerned would flood the mine. The mining complex in Naica contains substantial