Rex Gilroy (born November 9, 1943) is an Australian who has written articles and self-published books on cryptids and unexplained or speculative phenomena. His work has focused on yowie reports, 'out of place' animals, UFOs, and propositions regarding a 'lost' Australian civilization. He has contributed to, or been the subject of, several articles, in speculative media such as Nexus magazine and in Australian newspapers.
He is the author and publisher of several books, the first of which appeared in 1986. He has documented over 3000 reports relating to yowies. His eclectic career has seen field research into butterflies and anthropology, but he remains most notable for his controversial searches for the recently extinct thylacine, moas, alien big cats or the source of the yowie legend.
In 1959 he documented a sighting of an unidentified object in the sky and began collecting data on this and other fringe phenomena. Rex Gilroy spent many years researching the "Ancient Archaeology" of Australia, and claimed through thousands of artifact finds that the Phoenicians established many colonies in parts of Queensland in Australia, including port and dockside facilities. Gilroy claims that thousands of years ago, Australia must have had many inland tributaries and river networks, and the Phoenicians sailed upon them. Pyramids, such as the so-called Gympie Pyramid have also been claimed to have been found in Australia by Gilroy, who insists that they reveal that at some period in the distant past there existed a vast network of pyramids across the Pacific Asia Region, which he equates to the civilization and continent of Lemuria. Sonar mapping has shown there was no such landmass in the Pacific.
Gilroy also claims that the Burragorang Valley (Sydney's primary water catchment) is actually a cover for a top secret US/Australian underground military installation, focussed on UFO operations. Gilroy claims that the restricted area around the catchment (known officially as the Schedule 1 Catchment Protection area) is to keep unauthorised persons out, and notes cases of hikers being fired upon, and aircraft being shot down.