A new study claims that the largest rocks at megalithic monument were not moved by people. via: TheWeek UK Two of Stonehenge's largest stones were in place there for millions of years before Neolithic people built the monument, according to the site's former director of excavations. In a new paper published in the journal British Archaeology, Mike Pitts argues that two of the largest sarsens - the sandstone boulders that make up Stonehenge - have always been "more or less" where they sit today. Stonehenge, located on Salisbury Plain, and its alignment with the Solstice Sun has puzzled archaeologists for centuries. The largest sarsen, known as the heel stone, is 75 metres from the centre of the stone circle, weighs about 60 tons, and has not been shaped or dressed, unlike the other sarsens. It points to where the Sun rises and falls beneath the horizon at midsummer and midwinter. In the late 1970s, archaeologist Pitts was excavating beside the heel stone when he found a hole up to six