the devils marbles were formed 50 million years ago
The area is located near Wauchope, approximately 114 km south of Tennant Creek, in the Northern Territory.
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Granite. 1.7 Billion Years old.
The address of the Devils Tower Natural History Association is: Po Box 37, Devils Tower, WY 82714-0037
First written record of the name is in the 1870's - an engineer on The Overland Telegraph Line describes this amazing area concluding - "in fact they were called The Devils's Marbles". So no definitive answer. Summising though; the early adventurers and travellers all approached from the South following 'The Track'. Travelling across featureless flood plain they would have seen a small hill range ahead for two or three days but would have no idea what they were about to encounter until passing through the first hill and suddenly being confronted with some mind-blowing geolical formations. Massive blocks and balls of granite measuring many metres and weighing hundreds of tonnes apparently balancing high up on other rocks. It would seem to them to be totally un-natural and indeed Super-natural. Thus The Devils ... (To use God's name would be blasphemy) Marbles (because so many were so round)
Uranium marbles contain up to 3 % uranium; these marbles are fluorescent under an UV light.
Nothing has changed to the devils marbles.
The devils marbles look think two big red marbles and they are red as well!
It was in 1980 and Sir William Thomes discovered it and called it the Devils Marbles.
Devils Marbles Conservation Reserve was created in 1961-10.
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very big
The average size of the Devils Marbles conservation site is 18 km squared. I am pretty sure that this is correct. Hope it helped!
the devils marbles are 1802 hectares in size
The devils marbles
The Devils Marbles are a series of balancing boulders in the Northern Territory. Like any landform, they can be damaged by vandalism and erosion from humans tramping over them.