Silbury Hill
Wiltshire, England Prehistoric Earth Mound
The large landform know as Silbury Hill defines the word "enigmatic". This is the largest "man made" structure in Europe, standing over 40 meters above the surrounding landscape. Carbon dating of an antler found within the top layer of the structure has been dated at about 2,500 years BC, or 4,500 years ago. Why the hill was built is not known, as no burial chamber has ever been found. One legend regarding the origins of the mound is suggestive to us:
The Devil was making his way to Marlborough with a huge shovel full of earth he intended to dump on the town. On his way he met a cobbler carrying a load of old shoes he was taking to repair. "Old cobbler, is it far to the town of Marlborough?", asked the Devil. The cobbler had his wits about when he recognised "Old Nick" and replied, "It is a long way indeed, for I have worn out all of these shoes trying to walk there!". Upon hearing this the Devil decided to give up and dropped his shovel full of earth by the road-side forming a huge mound. In this way the old cobbler saved the town of Marlborough thanks to his quick wits. In another version it was priests in a nearby abby that scared the devil away.
The Perigee: Zero hypothesis suggests that Silbury Hill was indeed "dumped" from the sky, but as ejecta, not by a "Old Nick". We acknowledge that the final capping of the mound was accomplished by humans, who dug a 7 meter deep moat around the hill to provide the material.
The mound is composed of over 330,000 cubic meters of earth, which would have been quite a feat to erect 4,500 years ago. If it did "arrive" from the sky, the locals would have been justified in revering and protecting the site. During this same period the Amsbury Archer was buried near Stonehenge - fully clothed and with his bow and cache of arrows. Rather than being a ritualistic burial, the PZ hypothesis might suggest he was entombed by ejecta.
Silbury Hill with PZ Ejecta Overlay
The above graphic depicts the hill with a PZ generic ejecta GE overlay suggesting an arrival vector from the NNE, and may have been ejected from an impact between England and Ireland in the far North-Eastern reaches of the Irish Sea. Note that the hill is not a true conical structure, as the peak is offset to broad end of the teardrop shape, as would be expected of a standing ejecta structure.