MORE than 2.78 billion tonnes of coal have been gouged out of the Hunter Valley since the year 2000, enough to fill Lake Macquarie more than three times over.
Piled at 73 metres high - tall enough to cover Christ Church Cathedral plus the hill it's sitting on - it would create a 27 square kilometre blanket over the heart of Newcastle, from Fort Scratchley to Mayfield, and south to Merewether's Ocean baths.