Far and away the coolest method to get the stones upright is one used by Wally Wallington, a builder (construction worker) in the States. He puts a single piece of wood under the middle of the stone to be raised and a pair of upright pieces of wood on each side of the stone, reasonably close together near the middle. read more
To make use of the waterways year round, simple dams would conserve the water flow for continuous usage. The “Avenue”, is a 12 foot deep gully which connects stonehenge to the river; this is all part of the waterway system. Stonehenge I believe was a hub of trading at one end of a water transport system. read more