Rex & Heather Gilroy operate the "Blue Mountains UFO Research Club" and the recently formed "Centre for Blue Mountains UFO Studies. They are the foremost investigators of the Top Secret Underground Advanced Space Technology Base, being operated jointly by the Australian and American governments.

The subject of this section is "Blue Mountains Triangle", and contains material from the Gilroys' forthcoming book celebrating my 50 years of UFO research achievement titled: "Blue Mountains Triangle — UFO Close Encounters, Alien Abductions and the Underground UFO Base Mystery".

Besides the vast number of UFO sightings, the Blue Mountains continues to be one of the world's major UFO 'hotspots'. Our "Blue Mountains UFO Research Club" has recorded hundreds of sightings reports in some years. A great many of these reports appear to emanate from the Burragorang Valley south of Katoomba, and the equally vast Wollemi wilderness to the north.

Yet there is a more sinister aspect to the Blue Mountains UFO mystery which has persisted for generations; for it is a region where aircraft and people have mysteriously disappeared, where ET abductions occur. And, while many abductees have been released, others have not.

There is also another mystery pervading this wilderness, and one upon which I have, together with Heather, investigated for 35 years — the top secret American-Australian joint underground, advanced space travel technology base.

It is an incredible operation in which NASA is involved alongside US military, together with Australian scientists and military. It is an operation also involving thousands of other personnel and their families, living in an incredibly vast, underground world with its own self-sufficient colonies, or rather towns and other, more city-like habitation centres with their own economy, ruled over by a leader whose very name is not mentioned above ground.

All this is watched over from above by the FBI, CIA and our own ASIO; undercover representatives of which live in the Sydney district as well as on the Blue Mountains. The subject is just far too complex to reveal in full, so I intend to concentrate upon a selection of the more mysterious aspects of the mystery.

The 'Triangle' roughly covers an area beginning north of the Blue Mountains, extending from the Gulgong district in the north-west, eastwards through the Denman and Singleton districts to the Branxton-Maitland area. From Gulgong the western side of the 'Triangle' extends southward to the Goulburn area, and from here the eastern side of the 'Triangle' extends northwards through the western side of the Southern Highlands and on through the Mulgoa-Penrith area to Maitland.

It is within this 'Triangle' that the mysterious incidents covered in this talk have taken place. The relevant authorities remain tight-lipped on all the UFO-related events hereabouts.

There is the story that back in 1973 a young government employee in Canberra, discovered reams of paper that had been dumped in an office waste paper basket.

A casual glance revealed row upon row of sets of mathematical numbers and symbols. He rescued the pages and later showed them to a mathematician friend who remarked that they appeared to form some kind of "scientific language".

Eventually an astronomer to whom he showed the pages looked at them, literally turned pale and told him to get rid of them. "They are top secret messages and if you're caught with them you will be in big trouble", he told him.

However, the young man passed them on to another associate, we'll call him 'Mr West', whose mathematical skills enabled them to obtain information from the rows of figures. 'Mr West' informed this author in 1974 that, the translation obtained from the figures revealed directions on how to construct a flying craft somewhat like a giantsize F111 fighter plane, only that this craft was meant for space flights.

"We constructed a scale model and tested it in a wind tunnel. According to the information, the craft was able to travel at the speed of light. The craft was to be nuclear powered. The spacecraft was supposed to have a laser-type ray that could destroy any attacking airship. It could produce a protective forcefield around it and was designed to take off and land like an ordinary aircraft.

The 'mathematical language' spoke of experimental three-stage giant spacecraft, and also a 'saucer' type craft for space travel, which like the other two, was to be deployed from underground launching sites in the Blue Mountains and the Hinterland mountain range on the Queensland side of the New south Wales border.

The documents also spoke of the camouflaging of the launching sites, which consisted of huge sliding doors covered by a thick layer of soil topped with rocks, trees and shrubbery. We realised that this information was 'dynamite'. I let my friend take the documents and hide them somewhere safe, but he later disappeared without trace", said 'Mr West'.

These 'top secret' documents containing the 'mathematical language', so carelessly and no doubt accidentally discarded in a wastepaper bin, were obviously the communications of advanced scientific minds, passing on highly-advanced spaceship technology information otherwise unavailable to Earth space scientists back in the early 1970s and officially still is for that matter there.