From here we extracted the material for the city of Machu Picchu.
You can still see some stones half cut.
In some places more frigid than Machu Picchu to break the rocks they used the water to open holes in the rock to introduce water, during the night the water froze and with the sun the next day there was a pressure that cut the rock to then carve it with greater precision, all the stones were transported to their place only with human stencil since the Incas didn´t know animals of load either the wheel, the llamas do not carry much weight, only of 40 to 50 pounds.
